Common Weakness Enumeration

CWE-416

Allowed

Use After Free

Abstraction: Variant · Status: Stable

API response cwe.mitre.org

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

9874 vulnerabilities reference this CWE, most recent first.

GHSA-VV6J-WW6X-54GX

Vulnerability from github – Published: 2022-02-22 21:51 – Updated: 2022-04-12 15:14
VLAI
Summary
Use after free in Animation
Details

CVE-2022-0609: Use after free in Animation

  • https://chromereleases.googleblog.com/2022/02/stable-channel-update-for-desktop_14.html
  • https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0609

Google is aware of reports that exploits for CVE-2022-0609 exist in the wild.

The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available.

There is currently little other public information on the issue other than it has been flagged as High severity.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.Common"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.OffScreen"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.WinForms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.Wpf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.Wpf.HwndHost"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.Common.NETCore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.OffScreen.NETCore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.WinForms.NETCore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 98.1.190"
      },
      "package": {
        "ecosystem": "NuGet",
        "name": "CefSharp.Wpf.NETCore"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98.1.210"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-0609"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-02-22T21:51:19Z",
    "nvd_published_at": "2022-04-05T00:15:00Z",
    "severity": "HIGH"
  },
  "details": "CVE-2022-0609: Use after free in Animation\n\n- https://chromereleases.googleblog.com/2022/02/stable-channel-update-for-desktop_14.html\n- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0609\n\nGoogle is aware of reports that exploits for CVE-2022-0609 exist in the wild.\n\nThe exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but an exploit is available.\n\nThere is currently little other public information on the issue other than it has been flagged as `High` severity.",
  "id": "GHSA-vv6j-ww6x-54gx",
  "modified": "2022-04-12T15:14:36Z",
  "published": "2022-02-22T21:51:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cefsharp/CefSharp/security/advisories/GHSA-vv6j-ww6x-54gx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0609"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2022/02/stable-channel-update-for-desktop_14.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1296150"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cefsharp/CefSharp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Use after free in Animation"
}

GHSA-VV73-VF82-3769

Vulnerability from github – Published: 2022-05-14 01:10 – Updated: 2022-05-14 01:10
VLAI
Details

When processing project files, the application (Omron CX-Programmer v9.70 and prior and Common Components January 2019 and prior) fails to check if it is referencing freed memory. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.

Severity
6.6 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2019-6556"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-04-10T20:29:00Z",
    "severity": "MODERATE"
  },
  "details": "When processing project files, the application (Omron CX-Programmer v9.70 and prior and Common Components January 2019 and prior) fails to check if it is referencing freed memory. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.",
  "id": "GHSA-vv73-vf82-3769",
  "modified": "2022-05-14T01:10:37Z",
  "published": "2022-05-14T01:10:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6556"
    },
    {
      "type": "WEB",
      "url": "https://ics-cert.us-cert.gov/advisories/ICSA-19-094-01"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-19-344"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-VV7G-8W6R-FWJX

Vulnerability from github – Published: 2022-05-24 19:09 – Updated: 2022-05-24 19:09
VLAI
Details

Use after free in WebSerial in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-30562"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-03T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "Use after free in WebSerial in Google Chrome prior to 91.0.4472.164 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-vv7g-8w6r-fwjx",
  "modified": "2022-05-24T19:09:47Z",
  "published": "2022-05-24T19:09:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30562"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/1220078"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-VV93-V48R-H8PJ

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-06-01 18:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock

btintel_hw_error() issues two __hci_cmd_sync() calls (HCI_OP_RESET and Intel exception-info retrieval) without holding hci_req_sync_lock(). This lets it race against hci_dev_do_close() -> btintel_shutdown_combined(), which also runs __hci_cmd_sync() under the same lock. When both paths manipulate hdev->req_status/req_rsp concurrently, the close path may free the response skb first, and the still-running hw_error path hits a slab-use-after-free in kfree_skb().

Wrap the whole recovery sequence in hci_req_sync_lock/unlock so it is serialized with every other synchronous HCI command issuer.

Below is the data race report and the kasan report:

BUG: data-race in __hci_cmd_sync_sk / btintel_shutdown_combined

read of hdev->req_rsp at net/bluetooth/hci_sync.c:199 by task kworker/u17:1/83: __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200 __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223 btintel_hw_error+0x114/0x670 drivers/bluetooth/btintel.c:254 hci_error_reset+0x348/0xa30 net/bluetooth/hci_core.c:1030

write/free by task ioctl/22580: btintel_shutdown_combined+0xd0/0x360 drivers/bluetooth/btintel.c:3648 hci_dev_close_sync+0x9ae/0x2c10 net/bluetooth/hci_sync.c:5246 hci_dev_do_close+0x232/0x460 net/bluetooth/hci_core.c:526

BUG: KASAN: slab-use-after-free in sk_skb_reason_drop+0x43/0x380 net/core/skbuff.c:1202 Read of size 4 at addr ffff888144a738dc by task kworker/u17:1/83: __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200 __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223 btintel_hw_error+0x186/0x670 drivers/bluetooth/btintel.c:260

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-31500"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:48Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock\n\nbtintel_hw_error() issues two __hci_cmd_sync() calls (HCI_OP_RESET\nand Intel exception-info retrieval) without holding\nhci_req_sync_lock().  This lets it race against\nhci_dev_do_close() -\u003e btintel_shutdown_combined(), which also runs\n__hci_cmd_sync() under the same lock.  When both paths manipulate\nhdev-\u003ereq_status/req_rsp concurrently, the close path may free the\nresponse skb first, and the still-running hw_error path hits a\nslab-use-after-free in kfree_skb().\n\nWrap the whole recovery sequence in hci_req_sync_lock/unlock so it\nis serialized with every other synchronous HCI command issuer.\n\nBelow is the data race report and the kasan report:\n\n  BUG: data-race in __hci_cmd_sync_sk / btintel_shutdown_combined\n\n  read of hdev-\u003ereq_rsp at net/bluetooth/hci_sync.c:199\n  by task kworker/u17:1/83:\n   __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200\n   __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223\n   btintel_hw_error+0x114/0x670 drivers/bluetooth/btintel.c:254\n   hci_error_reset+0x348/0xa30 net/bluetooth/hci_core.c:1030\n\n  write/free by task ioctl/22580:\n   btintel_shutdown_combined+0xd0/0x360\n    drivers/bluetooth/btintel.c:3648\n   hci_dev_close_sync+0x9ae/0x2c10 net/bluetooth/hci_sync.c:5246\n   hci_dev_do_close+0x232/0x460 net/bluetooth/hci_core.c:526\n\n  BUG: KASAN: slab-use-after-free in\n   sk_skb_reason_drop+0x43/0x380 net/core/skbuff.c:1202\n  Read of size 4 at addr ffff888144a738dc\n  by task kworker/u17:1/83:\n   __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200\n   __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223\n   btintel_hw_error+0x186/0x670 drivers/bluetooth/btintel.c:260",
  "id": "GHSA-vv93-v48r-h8pj",
  "modified": "2026-06-01T18:31:24Z",
  "published": "2026-04-22T15:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31500"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f84e845648dfa86e42de5487f1a774b42f0444d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66696648af477dc87859e5e4b607112f5f29d010"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e041d0aad1d4d43d921ace052e04f4e2cacaed3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94d8e6fe5d0818e9300e514e095a200bd5ff93ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e10a4cb72468686ffbe8bb2b0520e37f6be1a0c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7d84737663ad4a120d2d8ef1561a4df91282c2e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-VVFQ-8HWR-QM4M

Vulnerability from github – Published: 2025-02-18 22:36 – Updated: 2025-03-10 22:36
VLAI
Summary
Nokogiri updates packaged libxml2 to 2.13.6 to resolve CVE-2025-24928 and CVE-2024-56171
Details

Summary

Nokogiri v1.18.3 upgrades its dependency libxml2 to v2.13.6.

libxml2 v2.13.6 addresses:

  • CVE-2025-24928
  • described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/847
  • CVE-2024-56171
  • described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/828

Impact

CVE-2025-24928

Stack-buffer overflow is possible when reporting DTD validation errors if the input contains a long (~3kb) QName prefix.

CVE-2024-56171

Use-after-free is possible during validation against untrusted XML Schemas (.xsd) and, potentially, validation of untrusted documents against trusted Schemas if they make use of xsd:keyref in combination with recursively defined types that have additional identity constraints.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "nokogiri"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.18.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-121",
      "CWE-1395",
      "CWE-416"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-18T22:36:03Z",
    "nvd_published_at": null,
    "severity": "LOW"
  },
  "details": "## Summary\n\nNokogiri v1.18.3 upgrades its dependency libxml2 to [v2.13.6](https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.6).\n\nlibxml2 v2.13.6 addresses:\n\n- CVE-2025-24928\n  - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/847\n- CVE-2024-56171\n   - described at https://gitlab.gnome.org/GNOME/libxml2/-/issues/828\n\n## Impact\n\n### CVE-2025-24928\n\nStack-buffer overflow is possible when reporting DTD validation errors if the input contains a long (~3kb) QName prefix.\n\n### CVE-2024-56171\n\nUse-after-free is possible during validation against untrusted XML Schemas (.xsd) and, potentially, validation of untrusted documents against trusted Schemas if they make use of `xsd:keyref` in combination with recursively defined types that have additional identity constraints.",
  "id": "GHSA-vvfq-8hwr-qm4m",
  "modified": "2025-03-10T22:36:22Z",
  "published": "2025-02-18T22:36:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/GHSA-vvfq-8hwr-qm4m.yml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/sparklemotion/nokogiri"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Nokogiri updates packaged libxml2 to 2.13.6 to resolve CVE-2025-24928 and CVE-2024-56171"
}

GHSA-VVGW-8MJP-FP2R

Vulnerability from github – Published: 2022-05-13 01:04 – Updated: 2022-05-13 01:04
VLAI
Details

Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (use-after-free and daemon crash) because of a force_rescan_user error.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2019-9706"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-03-12T01:29:00Z",
    "severity": "MODERATE"
  },
  "details": "Vixie Cron before the 3.0pl1-133 Debian package allows local users to cause a denial of service (use-after-free and daemon crash) because of a force_rescan_user error.",
  "id": "GHSA-vvgw-8mjp-fp2r",
  "modified": "2022-05-13T01:04:47Z",
  "published": "2022-05-13T01:04:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9706"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=809167"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00029.html"
    },
    {
      "type": "WEB",
      "url": "https://packages.qa.debian.org/c/cron/news/20190311T170403Z.html"
    },
    {
      "type": "WEB",
      "url": "https://salsa.debian.org/debian/cron/commit/40791b93"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-VVH8-8R3J-WMJW

Vulnerability from github – Published: 2022-05-14 01:41 – Updated: 2022-05-14 01:41
VLAI
Details

There is a use-after-free at asm/preproc.c (function pp_getline) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service during certain finishes tests.

Severity
5.5 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-20538"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-28T16:29:00Z",
    "severity": "MODERATE"
  },
  "details": "There is a use-after-free at asm/preproc.c (function pp_getline) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service during certain finishes tests.",
  "id": "GHSA-vvh8-8r3j-wmjw",
  "modified": "2022-05-14T01:41:37Z",
  "published": "2022-05-14T01:41:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20538"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.nasm.us/show_bug.cgi?id=3392531"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-VVH9-8F9F-XRHX

Vulnerability from github – Published: 2022-05-14 02:34 – Updated: 2022-05-14 02:34
VLAI
Details

Use-after-free vulnerability in Microsoft Internet Explorer 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka "Internet Explorer Use After Free Vulnerability."

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{
  "affected": [],
  "aliases": [
    "CVE-2013-1311"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2013-05-15T03:36:00Z",
    "severity": "HIGH"
  },
  "details": "Use-after-free vulnerability in Microsoft Internet Explorer 8 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, aka \"Internet Explorer Use After Free Vulnerability.\"",
  "id": "GHSA-vvh9-8f9f-xrhx",
  "modified": "2022-05-14T02:34:43Z",
  "published": "2022-05-14T02:34:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-1311"
    },
    {
      "type": "WEB",
      "url": "https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037"
    },
    {
      "type": "WEB",
      "url": "http://www.us-cert.gov/ncas/alerts/TA13-134A"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-VVHX-J2JP-RQHF

Vulnerability from github – Published: 2022-06-07 00:00 – Updated: 2022-06-18 00:00
VLAI
Details

A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege escalation issue.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2022-1966"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-06-06T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "A use-after-free vulnerability was found in the Linux kernel\u0027s Netfilter subsystem in net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege escalation issue.",
  "id": "GHSA-vvhx-j2jp-rqhf",
  "modified": "2022-06-18T00:00:24Z",
  "published": "2022-06-07T00:00:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-1966"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2092427"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5161"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2022/05/31/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-VVJ3-J4JG-68HM

Vulnerability from github – Published: 2025-07-03 09:30 – Updated: 2025-12-18 21:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

bpf, sockmap: Avoid using sk_socket after free when sending

The sk->sk_socket is not locked or referenced in backlog thread, and during the call to skb_send_sock(), there is a race condition with the release of sk_socket. All types of sockets(tcp/udp/unix/vsock) will be affected.

Race conditions: ''' CPU0 CPU1

backlog::skb_send_sock sendmsg_unlocked sock_sendmsg sock_sendmsg_nosec close(fd): ... ops->release() -> sock_map_close() sk_socket->ops = NULL free(socket) sock->ops->sendmsg ^ panic here '''

The ref of psock become 0 after sock_map_close() executed. ''' void sock_map_close() { ... if (likely(psock)) { ... // !! here we remove psock and the ref of psock become 0 sock_map_remove_links(sk, psock) psock = sk_psock_get(sk); if (unlikely(!psock)) goto no_psock; <=== Control jumps here via goto ... cancel_delayed_work_sync(&psock->work); <=== not executed sk_psock_put(sk, psock); ... } '''

Based on the fact that we already wait for the workqueue to finish in sock_map_close() if psock is held, we simply increase the psock reference count to avoid race conditions.

With this patch, if the backlog thread is running, sock_map_close() will wait for the backlog thread to complete and cancel all pending work.

If no backlog running, any pending work that hasn't started by then will fail when invoked by sk_psock_get(), as the psock reference count have been zeroed, and sk_psock_drop() will cancel all jobs via cancel_delayed_work_sync().

In summary, we require synchronization to coordinate the backlog thread and close() thread.

The panic I catched: ''' Workqueue: events sk_psock_backlog RIP: 0010:sock_sendmsg+0x21d/0x440 RAX: 0000000000000000 RBX: ffffc9000521fad8 RCX: 0000000000000001 ... Call Trace: ? die_addr+0x40/0xa0 ? exc_general_protection+0x14c/0x230 ? asm_exc_general_protection+0x26/0x30 ? sock_sendmsg+0x21d/0x440 ? sock_sendmsg+0x3e0/0x440 ? __pfx_sock_sendmsg+0x10/0x10 __skb_send_sock+0x543/0xb70 sk_psock_backlog+0x247/0xb80 ... '''

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-38154"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-03T09:15:30Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Avoid using sk_socket after free when sending\n\nThe sk-\u003esk_socket is not locked or referenced in backlog thread, and\nduring the call to skb_send_sock(), there is a race condition with\nthe release of sk_socket. All types of sockets(tcp/udp/unix/vsock)\nwill be affected.\n\nRace conditions:\n\u0027\u0027\u0027\nCPU0                               CPU1\n\nbacklog::skb_send_sock\n  sendmsg_unlocked\n    sock_sendmsg\n      sock_sendmsg_nosec\n                                   close(fd):\n                                     ...\n                                     ops-\u003erelease() -\u003e sock_map_close()\n                                     sk_socket-\u003eops = NULL\n                                     free(socket)\n      sock-\u003eops-\u003esendmsg\n            ^\n            panic here\n\u0027\u0027\u0027\n\nThe ref of psock become 0 after sock_map_close() executed.\n\u0027\u0027\u0027\nvoid sock_map_close()\n{\n    ...\n    if (likely(psock)) {\n    ...\n    // !! here we remove psock and the ref of psock become 0\n    sock_map_remove_links(sk, psock)\n    psock = sk_psock_get(sk);\n    if (unlikely(!psock))\n        goto no_psock; \u003c=== Control jumps here via goto\n        ...\n        cancel_delayed_work_sync(\u0026psock-\u003ework); \u003c=== not executed\n        sk_psock_put(sk, psock);\n        ...\n}\n\u0027\u0027\u0027\n\nBased on the fact that we already wait for the workqueue to finish in\nsock_map_close() if psock is held, we simply increase the psock\nreference count to avoid race conditions.\n\nWith this patch, if the backlog thread is running, sock_map_close() will\nwait for the backlog thread to complete and cancel all pending work.\n\nIf no backlog running, any pending work that hasn\u0027t started by then will\nfail when invoked by sk_psock_get(), as the psock reference count have\nbeen zeroed, and sk_psock_drop() will cancel all jobs via\ncancel_delayed_work_sync().\n\nIn summary, we require synchronization to coordinate the backlog thread\nand close() thread.\n\nThe panic I catched:\n\u0027\u0027\u0027\nWorkqueue: events sk_psock_backlog\nRIP: 0010:sock_sendmsg+0x21d/0x440\nRAX: 0000000000000000 RBX: ffffc9000521fad8 RCX: 0000000000000001\n...\nCall Trace:\n \u003cTASK\u003e\n ? die_addr+0x40/0xa0\n ? exc_general_protection+0x14c/0x230\n ? asm_exc_general_protection+0x26/0x30\n ? sock_sendmsg+0x21d/0x440\n ? sock_sendmsg+0x3e0/0x440\n ? __pfx_sock_sendmsg+0x10/0x10\n __skb_send_sock+0x543/0xb70\n sk_psock_backlog+0x247/0xb80\n...\n\u0027\u0027\u0027",
  "id": "GHSA-vvj3-j4jg-68hm",
  "modified": "2025-12-18T21:31:33Z",
  "published": "2025-07-03T09:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38154"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15c0250dae3b48a398447d2b364603821ed4ed90"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c6fa65ab2aec7df94809478c8d28ef38676a1b7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4edb40b05cb6a261775abfd8046804ca139a5546"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7c0a16f6ea2b1c82a03bccd5d1bdb4a7bbd4d987"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8259eb0e06d8f64c700f5fbdb28a5c18e10de291"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b19cbf0b9a91f5a0d93fbcd761ff71c48ab40ed9"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation
Architecture and Design

Strategy: Language Selection

Choose a language that provides automatic memory management.

Mitigation
Implementation

Strategy: Attack Surface Reduction

When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.

No CAPEC attack patterns related to this CWE.

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