Common Weakness Enumeration

CWE-787

Allowed-with-Review

Out-of-bounds Write

Abstraction: Base · Status: Draft

The product writes data past the end, or before the beginning, of the intended buffer.

15136 vulnerabilities reference this CWE, most recent first.

GHSA-2QJP-VW8X-G869

Vulnerability from github – Published: 2022-05-13 01:23 – Updated: 2022-05-13 01:23
VLAI
Details

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 26.0 and SeaMonkey before 2.23 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2013-5610"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2013-12-11T15:55:00Z",
    "severity": "HIGH"
  },
  "details": "Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 26.0 and SeaMonkey before 2.23 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.",
  "id": "GHSA-2qjp-vw8x-g869",
  "modified": "2022-05-13T01:23:09Z",
  "published": "2022-05-13T01:23:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-5610"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=890432"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=905903"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201504-01"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-December/123437.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124108.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-December/124257.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-January/125470.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2013-12/msg00010.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00085.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00086.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00087.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00119.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00120.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2013-12/msg00121.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2014-01/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "http://www.mozilla.org/security/announce/2013/mfsa2013-104.html"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1029470"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1029476"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2052-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-2QJW-H8G8-R86F

Vulnerability from github – Published: 2026-03-24 15:30 – Updated: 2026-06-30 03:35
VLAI
Details

Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, and Firefox ESR < 140.9.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-4699"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-754",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-24T13:16:05Z",
    "severity": "HIGH"
  },
  "details": "Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability affects Firefox \u003c 149, Firefox ESR \u003c 115.34, and Firefox ESR \u003c 140.9.",
  "id": "GHSA-2qjw-h8g8-r86f",
  "modified": "2026-06-30T03:35:58Z",
  "published": "2026-03-24T15:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4699"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:5930"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8287"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8288"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8289"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8290"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8315"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8427"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8850"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-4699"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2021863"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450739"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4699.json"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-20"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-21"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-22"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-23"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-24"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:5931"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:5932"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:6188"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:6342"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:6917"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7837"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7838"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7839"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7840"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7841"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7842"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7843"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7845"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:7858"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8284"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8285"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:8286"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2QM4-8QH4-4729

Vulnerability from github – Published: 2022-05-13 01:18 – Updated: 2022-05-13 01:18
VLAI
Details

Microsoft Edge in Windows 10 1709 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0758, CVE-2018-0762, CVE-2018-0768, CVE-2018-0769, CVE-2018-0770, CVE-2018-0772, CVE-2018-0773, CVE-2018-0775, CVE-2018-0776, CVE-2018-0777, CVE-2018-0778, and CVE-2018-0781.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-0774"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-01-04T14:29:00Z",
    "severity": "HIGH"
  },
  "details": "Microsoft Edge in Windows 10 1709 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka \"Scripting Engine Memory Corruption Vulnerability\". This CVE ID is unique from CVE-2018-0758, CVE-2018-0762, CVE-2018-0768, CVE-2018-0769, CVE-2018-0770, CVE-2018-0772, CVE-2018-0773, CVE-2018-0775, CVE-2018-0776, CVE-2018-0777, CVE-2018-0778, and CVE-2018-0781.",
  "id": "GHSA-2qm4-8qh4-4729",
  "modified": "2022-05-13T01:18:27Z",
  "published": "2022-05-13T01:18:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0774"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0774"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/43715"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/102399"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1040100"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2QPH-2P52-G49J

Vulnerability from github – Published: 2024-12-02 21:31 – Updated: 2024-12-02 21:31
VLAI
Details

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 9110, W920, W930, W1000, Modem 5123, Modem 5300. The baseband software does not properly check the length specified by the CC (Call Control). This can lead to an Out-of-Bounds write.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-39890"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-02T21:15:10Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 9110, W920, W930, W1000, Modem 5123, Modem 5300. The baseband software does not properly check the length specified by the CC (Call Control). This can lead to an Out-of-Bounds write.",
  "id": "GHSA-2qph-2p52-g49j",
  "modified": "2024-12-02T21:31:20Z",
  "published": "2024-12-02T21:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39890"
    },
    {
      "type": "WEB",
      "url": "https://semiconductor.samsung.com/support/quality-support/product-security-updates"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2QQJ-JHHR-PX8R

Vulnerability from github – Published: 2022-05-24 17:12 – Updated: 2022-05-24 17:12
VLAI
Details

Adobe Photoshop CC 2019 versions 20.0.8 and earlier, and Photoshop 2020 versions 21.1 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-3779"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-03-25T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Adobe Photoshop CC 2019 versions 20.0.8 and earlier, and Photoshop 2020 versions 21.1 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution.",
  "id": "GHSA-2qqj-jhhr-px8r",
  "modified": "2022-05-24T17:12:42Z",
  "published": "2022-05-24T17:12:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-3779"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/photoshop/apsb20-14.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-2QR7-X4VX-VJ3F

Vulnerability from github – Published: 2022-05-24 17:47 – Updated: 2022-05-24 17:47
VLAI
Details

In setPowerModeWithHandle of com_android_server_power_PowerManagerService.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-174243830

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-0439"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-04-13T19:15:00Z",
    "severity": "HIGH"
  },
  "details": "In setPowerModeWithHandle of com_android_server_power_PowerManagerService.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-174243830",
  "id": "GHSA-2qr7-x4vx-vj3f",
  "modified": "2022-05-24T17:47:12Z",
  "published": "2022-05-24T17:47:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0439"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2021-04-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-2QRF-M8QR-6W35

Vulnerability from github – Published: 2022-11-09 12:00 – Updated: 2022-11-10 19:01
VLAI
Details

In gpu drm, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07310704; Issue ID: ALPS07310704.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-32603"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-08T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In gpu drm, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07310704; Issue ID: ALPS07310704.",
  "id": "GHSA-2qrf-m8qr-6w35",
  "modified": "2022-11-10T19:01:10Z",
  "published": "2022-11-09T12:00:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32603"
    },
    {
      "type": "WEB",
      "url": "https://corp.mediatek.com/product-security-bulletin/November-2022"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-2QV2-R6PR-H6QM

Vulnerability from github – Published: 2022-05-24 16:58 – Updated: 2024-04-04 02:10
VLAI
Details

XnView Classic 2.49.1 allows a User Mode Write AV starting at Xwsq+0x0000000000001e51.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-17261"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-10-08T12:15:00Z",
    "severity": "HIGH"
  },
  "details": "XnView Classic 2.49.1 allows a User Mode Write AV starting at Xwsq+0x0000000000001e51.",
  "id": "GHSA-2qv2-r6pr-h6qm",
  "modified": "2024-04-04T02:10:49Z",
  "published": "2022-05-24T16:58:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-17261"
    },
    {
      "type": "WEB",
      "url": "https://github.com/linhlhq/research/blob/master/README.md"
    },
    {
      "type": "WEB",
      "url": "https://www.xnview.com/en/xnview/#changelog"
    }
  ],
  "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-2QV5-C5X6-3FQR

Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2022-05-24 17:35
VLAI
Details

An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. Processing a maliciously crafted audio file may lead to arbitrary code execution.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-27916"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-12-08T21:15:00Z",
    "severity": "HIGH"
  },
  "details": "An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.2 and iPadOS 14.2, tvOS 14.2, watchOS 7.1. Processing a maliciously crafted audio file may lead to arbitrary code execution.",
  "id": "GHSA-2qv5-c5x6-3fqr",
  "modified": "2022-05-24T17:35:43Z",
  "published": "2022-05-24T17:35:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27916"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT211928"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT211929"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT211930"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT211931"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT212011"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2020/Dec/26"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2020/Dec/32"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-2QW9-4W7H-8C4Q

Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2023-02-01 15:30
VLAI
Details

A fixed-size stack buffer could overflow in nrappkit when doing WebRTC signaling. This resulted in a potentially exploitable crash in some instances. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-11760"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-01-08T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A fixed-size stack buffer could overflow in nrappkit when doing WebRTC signaling. This resulted in a potentially exploitable crash in some instances. This vulnerability affects Firefox \u003c 70, Thunderbird \u003c 68.2, and Firefox ESR \u003c 68.2.",
  "id": "GHSA-2qw9-4w7h-8c4q",
  "modified": "2023-02-01T15:30:22Z",
  "published": "2022-05-24T17:05:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11760"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1577719"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202003-10"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4335-1"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2019-33"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2019-34"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2019-35"
    }
  ],
  "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"
    }
  ]
}

Mitigation MIT-3
Requirements

Strategy: Language Selection

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
  • Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation MIT-4.1
Architecture and Design

Strategy: Libraries or Frameworks

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation MIT-10
Operation Build and Compilation

Strategy: Environment Hardening

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation MIT-9
Implementation
  • Consider adhering to the following rules when allocating and managing an application's memory:
  • Double check that the buffer is as large as specified.
  • When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
  • Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
  • If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation MIT-11
Operation Build and Compilation

Strategy: Environment Hardening

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation MIT-12
Operation

Strategy: Environment Hardening

  • Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
  • For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation MIT-13
Implementation

Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.

No CAPEC attack patterns related to this CWE.