Common Weakness Enumeration

CWE-787

Allowed-with-Review

Out-of-bounds Write

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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

15384 vulnerabilities reference this CWE, most recent first.

GHSA-6CQX-6PGX-HRH2

Vulnerability from github – Published: 2022-05-14 00:53 – Updated: 2025-04-12 13:05
VLAI
Details

Adobe Flash Player before 18.0.0.382 and 19.x through 23.x before 23.0.0.185 on Windows and OS X and before 11.2.202.637 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-6982, CVE-2016-6983, CVE-2016-6984, CVE-2016-6985, CVE-2016-6986, CVE-2016-6989, and CVE-2016-6990.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2016-4273"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-10-13T19:59:00Z",
    "severity": "CRITICAL"
  },
  "details": "Adobe Flash Player before 18.0.0.382 and 19.x through 23.x before 23.0.0.185 on Windows and OS X and before 11.2.202.637 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-6982, CVE-2016-6983, CVE-2016-6984, CVE-2016-6985, CVE-2016-6986, CVE-2016-6989, and CVE-2016-6990.",
  "id": "GHSA-6cqx-6pgx-hrh2",
  "modified": "2025-04-12T13:05:26Z",
  "published": "2022-05-14T00:53:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4273"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/flash-player/apsb16-32.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201610-10"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/40510"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-2057.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/93490"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1036985"
    }
  ],
  "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-6CR5-7GW9-XV96

Vulnerability from github – Published: 2025-08-13 00:30 – Updated: 2025-08-13 00:30
VLAI
Details

Substance3D - Stager versions 3.1.3 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2025-54222"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-12T22:15:26Z",
    "severity": "HIGH"
  },
  "details": "Substance3D - Stager versions 3.1.3 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
  "id": "GHSA-6cr5-7gw9-xv96",
  "modified": "2025-08-13T00:30:56Z",
  "published": "2025-08-13T00:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54222"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/substance3d_stager/apsb25-81.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"
    }
  ]
}

GHSA-6CV4-3H2G-632H

Vulnerability from github – Published: 2026-05-12 15:31 – Updated: 2026-06-30 03:36
VLAI
Details

Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-8388"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-12T14:17:11Z",
    "severity": "MODERATE"
  },
  "details": "Incorrect boundary conditions in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.",
  "id": "GHSA-6cv4-3h2g-632h",
  "modified": "2026-06-30T03:36:39Z",
  "published": "2026-05-12T15:31:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8388"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-51"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-48"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-47"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2026-45"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8388.json"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476469"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2036978"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-8388"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27715"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26630"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26629"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26606"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26551"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26539"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26536"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26521"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26493"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26492"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26491"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26270"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26269"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26268"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:26174"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:22643"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:22325"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:21382"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:21381"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:21380"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:21378"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-6CV7-9HGP-4G7W

Vulnerability from github – Published: 2021-12-27 00:00 – Updated: 2022-01-08 00:00
VLAI
Details

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, RAX200 before 1.0.5.126, RAX75 before 1.0.5.126, and RAX80 before 1.0.5.126.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-45607"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-26T01:15:00Z",
    "severity": "HIGH"
  },
  "details": "Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects R6400v2 before 1.0.4.118, R6700v3 before 1.0.4.118, R6900P before 1.3.3.140, R7000 before 1.0.11.126, R7000P before 1.3.3.140, RAX200 before 1.0.5.126, RAX75 before 1.0.5.126, and RAX80 before 1.0.5.126.",
  "id": "GHSA-6cv7-9hgp-4g7w",
  "modified": "2022-01-08T00:00:57Z",
  "published": "2021-12-27T00:00:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45607"
    },
    {
      "type": "WEB",
      "url": "https://kb.netgear.com/000064531/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-Some-Routers-PSV-2021-0128"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-6CV9-9P4C-38FQ

Vulnerability from github – Published: 2023-04-07 15:30 – Updated: 2025-02-12 18:31
VLAI
Details

H3C Magic R100 R100V100R005.bin was discovered to contain a stack overflow via the DelDNSHnList interface at /goform/aspForm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted payload.

Severity
4.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-27801"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-04-07T14:15:00Z",
    "severity": "MODERATE"
  },
  "details": "H3C Magic R100 R100V100R005.bin was discovered to contain a stack overflow via the DelDNSHnList interface at /goform/aspForm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted payload.",
  "id": "GHSA-6cv9-9p4c-38fq",
  "modified": "2025-02-12T18:31:23Z",
  "published": "2023-04-07T15:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27801"
    },
    {
      "type": "WEB",
      "url": "https://hackmd.io/%400dayResearch/DelDNSHnList"
    },
    {
      "type": "WEB",
      "url": "https://hackmd.io/@0dayResearch/DelDNSHnList"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-6CV9-H985-65W3

Vulnerability from github – Published: 2022-05-24 16:54 – Updated: 2022-05-24 16:54
VLAI
Details

Adobe Acrobat and Reader versions , 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier, 2017.011.30142 and earlier, 2015.006.30497 and earlier, and 2015.006.30498 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution .

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{
  "affected": [],
  "aliases": [
    "CVE-2019-8008"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-08-20T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Adobe Acrobat and Reader versions , 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier, 2017.011.30142 and earlier, 2015.006.30497 and earlier, and 2015.006.30498 and earlier have an out-of-bounds write vulnerability. Successful exploitation could lead to arbitrary code execution .",
  "id": "GHSA-6cv9-h985-65w3",
  "modified": "2022-05-24T16:54:10Z",
  "published": "2022-05-24T16:54:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8008"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb19-41.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-6CVJ-HX37-FQ45

Vulnerability from github – Published: 2022-05-14 03:09 – Updated: 2024-10-21 15:32
VLAI
Details

An out-of-bounds write vulnerability while decoding improperly formed BinHex format archives. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2017-5443"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-06-11T21:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "An out-of-bounds write vulnerability while decoding improperly formed BinHex format archives. This vulnerability affects Thunderbird \u003c 52.1, Firefox ESR \u003c 45.9, Firefox ESR \u003c 52.1, and Firefox \u003c 53.",
  "id": "GHSA-6cvj-hx37-fq45",
  "modified": "2024-10-21T15:32:20Z",
  "published": "2022-05-14T03:09:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-5443"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1104"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1106"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:1201"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1342661"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2017/dsa-3831"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2017-10"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2017-11"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2017-12"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2017-13"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/97940"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1038320"
    }
  ],
  "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-6CVP-82CV-4V82

Vulnerability from github – Published: 2025-01-22 00:33 – Updated: 2025-01-22 15:32
VLAI
Details

In DGifSlurp of dgif_lib.c, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

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": [],
  "aliases": [
    "CVE-2024-49749"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-21T23:15:15Z",
    "severity": "HIGH"
  },
  "details": "In DGifSlurp of dgif_lib.c, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.",
  "id": "GHSA-6cvp-82cv-4v82",
  "modified": "2025-01-22T15:32:34Z",
  "published": "2025-01-22T00:33:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49749"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/2025-01-01"
    }
  ],
  "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-6CW8-RF2J-HFQV

Vulnerability from github – Published: 2022-05-24 17:27 – Updated: 2022-05-24 17:27
VLAI
Details

SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated PCX file received from untrusted sources which results in crashing of the application and becoming temporarily unavailable until the user restarts the application, this is caused due to Improper Input Validation.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-6340"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-09-09T13:15:00Z",
    "severity": "MODERATE"
  },
  "details": "SAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated PCX file received from untrusted sources which results in crashing of the application and becoming temporarily unavailable until the user restarts the application, this is caused due to Improper Input Validation.",
  "id": "GHSA-6cw8-rf2j-hfqv",
  "modified": "2022-05-24T17:27:45Z",
  "published": "2022-05-24T17:27:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6340"
    },
    {
      "type": "WEB",
      "url": "https://launchpad.support.sap.com/#/notes/2960815"
    },
    {
      "type": "WEB",
      "url": "https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=557449700"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1154"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-6CWF-WG9F-5WQV

Vulnerability from github – Published: 2022-05-13 01:21 – Updated: 2022-05-13 01:21
VLAI
Details

A memory corruption vulnerability exists in the Windows DHCP client when an attacker sends specially crafted DHCP responses to a client, aka "Windows DHCP Client Remote Code Execution Vulnerability." This affects Windows 10, Windows 10 Servers.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2019-0547"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-01-08T21:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "A memory corruption vulnerability exists in the Windows DHCP client when an attacker sends specially crafted DHCP responses to a client, aka \"Windows DHCP Client Remote Code Execution Vulnerability.\" This affects Windows 10, Windows 10 Servers.",
  "id": "GHSA-6cwf-wg9f-5wqv",
  "modified": "2022-05-13T01:21:15Z",
  "published": "2022-05-13T01:21:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-0547"
    },
    {
      "type": "WEB",
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0547"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/106394"
    }
  ],
  "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"
    }
  ]
}
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.

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