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.

15271 vulnerabilities reference this CWE, most recent first.

GHSA-579G-HC2X-8688

Vulnerability from github – Published: 2024-01-18 03:30 – Updated: 2024-01-24 21:30
VLAI
Details

In jpg driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with System execution privileges needed

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-48356"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-18T03:15:58Z",
    "severity": "MODERATE"
  },
  "details": "In jpg driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with System execution privileges needed",
  "id": "GHSA-579g-hc2x-8688",
  "modified": "2024-01-24T21:30:33Z",
  "published": "2024-01-18T03:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48356"
    },
    {
      "type": "WEB",
      "url": "https://www.unisoc.com/en_us/secy/announcementDetail/1745735200442220545"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-579P-3XV7-XHP3

Vulnerability from github – Published: 2022-10-21 19:01 – Updated: 2025-05-07 21:31
VLAI
Details

LibTIFF 4.4.0 has an out-of-bounds write in _TIFFmemcpy in libtiff/tif_unix.c:346 when called from extractImageSection, tools/tiffcrop.c:6826, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit 236b7191.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-3597"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-21T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "LibTIFF 4.4.0 has an out-of-bounds write in _TIFFmemcpy in libtiff/tif_unix.c:346 when called from extractImageSection, tools/tiffcrop.c:6826, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit 236b7191.",
  "id": "GHSA-579p-3xv7-xhp3",
  "modified": "2025-05-07T21:31:36Z",
  "published": "2022-10-21T19:01:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-3597"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-3597.json"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/libtiff/libtiff/-/commit/236b7191f04c60d09ee836ae13b50f812c841047"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/libtiff/libtiff/-/issues/413"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/01/msg00018.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20230110-0001"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5333"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-57C8-XCW6-X8H7

Vulnerability from github – Published: 2024-07-08 18:31 – Updated: 2025-11-04 18:31
VLAI
Details

Two stack-based buffer overflow vulnerabilities exist in the boa set_RadvdInterfaceParam functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger these vulnerabilities.This stack-based buffer overflow is related to the interfacename request's parameter.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-50239"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-08T16:15:05Z",
    "severity": "HIGH"
  },
  "details": "Two stack-based buffer overflow vulnerabilities exist in the boa set_RadvdInterfaceParam functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger these vulnerabilities.This stack-based buffer overflow is related to the `interfacename` request\u0027s parameter.",
  "id": "GHSA-57c8-xcw6-x8h7",
  "modified": "2025-11-04T18:31:07Z",
  "published": "2024-07-08T18:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50239"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1893"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1893"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-57CG-F3QW-833H

Vulnerability from github – Published: 2022-05-14 03:57 – Updated: 2023-01-25 03:30
VLAI
Details

Adobe Flash Player before 18.0.0.366 and 19.x through 22.x before 22.0.0.209 on Windows and OS X and before 11.2.202.632 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4172, CVE-2016-4175, CVE-2016-4179, CVE-2016-4180, CVE-2016-4181, CVE-2016-4182, CVE-2016-4183, CVE-2016-4184, CVE-2016-4185, CVE-2016-4186, CVE-2016-4187, CVE-2016-4188, CVE-2016-4189, CVE-2016-4190, CVE-2016-4217, CVE-2016-4218, CVE-2016-4219, CVE-2016-4220, CVE-2016-4221, CVE-2016-4233, CVE-2016-4234, CVE-2016-4235, CVE-2016-4236, CVE-2016-4237, CVE-2016-4238, CVE-2016-4239, CVE-2016-4241, CVE-2016-4242, CVE-2016-4243, CVE-2016-4244, CVE-2016-4245, and CVE-2016-4246.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2016-4240"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-07-13T02:00:00Z",
    "severity": "CRITICAL"
  },
  "details": "Adobe Flash Player before 18.0.0.366 and 19.x through 22.x before 22.0.0.209 on Windows and OS X and before 11.2.202.632 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4172, CVE-2016-4175, CVE-2016-4179, CVE-2016-4180, CVE-2016-4181, CVE-2016-4182, CVE-2016-4183, CVE-2016-4184, CVE-2016-4185, CVE-2016-4186, CVE-2016-4187, CVE-2016-4188, CVE-2016-4189, CVE-2016-4190, CVE-2016-4217, CVE-2016-4218, CVE-2016-4219, CVE-2016-4220, CVE-2016-4221, CVE-2016-4233, CVE-2016-4234, CVE-2016-4235, CVE-2016-4236, CVE-2016-4237, CVE-2016-4238, CVE-2016-4239, CVE-2016-4241, CVE-2016-4242, CVE-2016-4243, CVE-2016-4244, CVE-2016-4245, and CVE-2016-4246.",
  "id": "GHSA-57cg-f3qw-833h",
  "modified": "2023-01-25T03:30:31Z",
  "published": "2022-05-14T03:57:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4240"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2016:1423"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/flash-player/apsb16-25.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201607-03"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00016.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00017.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/91725"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1036280"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-57CQ-JGQ2-X7VG

Vulnerability from github – Published: 2024-08-21 21:30 – Updated: 2024-08-22 15:31
VLAI
Details

Heap buffer overflow in Fonts in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-7967"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122",
      "CWE-787",
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T21:15:09Z",
    "severity": "HIGH"
  },
  "details": "Heap buffer overflow in Fonts in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
  "id": "GHSA-57cq-jgq2-x7vg",
  "modified": "2024-08-22T15:31:18Z",
  "published": "2024-08-21T21:30:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7967"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2024/08/stable-channel-update-for-desktop_21.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/355731798"
    }
  ],
  "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"
    }
  ]
}

GHSA-57FH-6V6H-P687

Vulnerability from github – Published: 2023-11-01 12:30 – Updated: 2023-11-08 00:30
VLAI
Details

In wifi service, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no additional execution privileges needed

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-48454"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-11-01T10:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In wifi service, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service with no additional execution privileges needed",
  "id": "GHSA-57fh-6v6h-p687",
  "modified": "2023-11-08T00:30:20Z",
  "published": "2023-11-01T12:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48454"
    },
    {
      "type": "WEB",
      "url": "https://www.unisoc.com/en_us/secy/announcementDetail/https://www.unisoc.com/en_us/secy/announcementDetail/1719615756246777857"
    }
  ],
  "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-57FV-HR9V-7RFX

Vulnerability from github – Published: 2023-08-22 21:30 – Updated: 2024-04-04 07:07
VLAI
Details

Stack overflow vulnerability in ast_selectors.cpp: in function Sass::ComplexSelector::has_placeholder in libsass:3.6.5-8-g210218, which can be exploited by attackers to cause a denial of service (DoS).

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-43358"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-08-22T19:16:29Z",
    "severity": "HIGH"
  },
  "details": "Stack overflow vulnerability in ast_selectors.cpp: in function Sass::ComplexSelector::has_placeholder in libsass:3.6.5-8-g210218, which can be exploited by attackers to cause a denial of service (DoS).",
  "id": "GHSA-57fv-hr9v-7rfx",
  "modified": "2024-04-04T07:07:29Z",
  "published": "2023-08-22T21:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-43358"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sass/libsass/issues/3178"
    },
    {
      "type": "WEB",
      "url": "https://drive.google.com/file/d/1j5fkPjWH9zQeTdO_4dMcZ-FpOBzP0MaI"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sass/libsass"
    }
  ],
  "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-57GR-X8MP-Q54M

Vulnerability from github – Published: 2024-03-15 09:30 – Updated: 2024-03-15 09:30
VLAI
Details

A vulnerability classified as critical has been found in Tenda AC18 15.03.05.05. Affected is the function formSetQosBand of the file /goform/SetNetControlList. The manipulation of the argument list leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-256896. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-2489"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-15T09:15:08Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability classified as critical has been found in Tenda AC18 15.03.05.05. Affected is the function formSetQosBand of the file /goform/SetNetControlList. The manipulation of the argument list leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-256896. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-57gr-x8mp-q54m",
  "modified": "2024-03-15T09:30:39Z",
  "published": "2024-03-15T09:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-2489"
    },
    {
      "type": "WEB",
      "url": "https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AC18/formSetQosBand.md"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.256896"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.256896"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-57H3-9RGR-C24M

Vulnerability from github – Published: 2021-03-29 16:35 – Updated: 2024-10-08 13:11
VLAI
Summary
Out of bounds write in Pillow
Details

An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pillow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.1.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-25289"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-22T22:07:48Z",
    "nvd_published_at": "2021-03-19T04:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in Pillow before 8.1.1. TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.",
  "id": "GHSA-57h3-9rgr-c24m",
  "modified": "2024-10-08T13:11:32Z",
  "published": "2021-03-29T16:35:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25289"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow/commit/3fee28eb9479bf7d59e0fa08068f9cc4a6e2f04c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow/commit/cbfdde7b1f2295059a20a539ee9960f0bec7b299"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-57h3-9rgr-c24m"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-35.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python-pillow/Pillow"
    },
    {
      "type": "WEB",
      "url": "https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202107-33"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Out of bounds write in Pillow"
}

GHSA-57HF-R78P-7P9M

Vulnerability from github – Published: 2024-11-18 18:30 – Updated: 2024-12-10 15:32
VLAI
Details

A vulnerability has been identified in Tecnomatix Plant Simulation V2302 (All versions < V2302.0018), Tecnomatix Plant Simulation V2404 (All versions < V2404.0007). The affected applications contain an out of bounds write vulnerability when parsing a specially crafted WRL file. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-24233)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-52566"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-18T16:15:27Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability has been identified in Tecnomatix Plant Simulation V2302 (All versions \u003c V2302.0018), Tecnomatix Plant Simulation V2404 (All versions \u003c V2404.0007). The affected applications contain an out of bounds write vulnerability when parsing a specially crafted WRL file.\nThis could allow an attacker to execute code in the context of the current process. (ZDI-CAN-24233)",
  "id": "GHSA-57hf-r78p-7p9m",
  "modified": "2024-12-10T15:32:31Z",
  "published": "2024-11-18T18:30:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-52566"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-645131.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-824503.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.