Common Weakness Enumeration

CWE-190

Allowed

Integer Overflow or Wraparound

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

3893 vulnerabilities reference this CWE, most recent first.

GHSA-P4QF-R8Q8-F438

Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32
VLAI
Details

Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-55057"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T18:18:17Z",
    "severity": "MODERATE"
  },
  "details": "Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.",
  "id": "GHSA-p4qf-r8q8-f438",
  "modified": "2026-07-14T18:32:34Z",
  "published": "2026-07-14T18:32:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-55057"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55057"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-P5H6-P5X2-5QXF

Vulnerability from github – Published: 2022-05-13 01:14 – Updated: 2022-05-13 01:14
VLAI
Details

Modules/_pickle.c in Python before 3.7.1 has an integer overflow via a large LONG_BINPUT value that is mishandled during a "resize to twice the size" attempt. This issue might cause memory exhaustion, but is only relevant if the pickle format is used for serializing tens or hundreds of gigabytes of data. This issue is fixed in: v3.4.10, v3.4.10rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.7rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.7, v3.6.7rc1, v3.6.7rc2, v3.6.8, v3.6.8rc1, v3.6.9, v3.6.9rc1; v3.7.1, v3.7.1rc1, v3.7.1rc2, v3.7.2, v3.7.2rc1, v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2018-20406"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-23T23:29:00Z",
    "severity": "HIGH"
  },
  "details": "Modules/_pickle.c in Python before 3.7.1 has an integer overflow via a large LONG_BINPUT value that is mishandled during a \"resize to twice the size\" attempt. This issue might cause memory exhaustion, but is only relevant if the pickle format is used for serializing tens or hundreds of gigabytes of data. This issue is fixed in: v3.4.10, v3.4.10rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.7rc1, v3.5.8, v3.5.8rc1, v3.5.8rc2, v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.7, v3.6.7rc1, v3.6.7rc2, v3.6.8, v3.6.8rc1, v3.6.9, v3.6.9rc1; v3.7.1, v3.7.1rc1, v3.7.1rc2, v3.7.2, v3.7.2rc1, v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5, v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.",
  "id": "GHSA-p5h6-p5x2-5qxf",
  "modified": "2022-05-13T01:14:01Z",
  "published": "2022-05-13T01:14:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-20406"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/a4ae828ee416a66d8c7bf5ee71d653c2cc6a26dd"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:3725"
    },
    {
      "type": "WEB",
      "url": "https://bugs.python.org/issue34656"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/02/msg00011.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00011.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46PVWY5LFP4BRPG3BVQ5QEEFYBVEXHCK"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AEZ5IQT7OF7Q2NCGIVABOWYGKO7YU3NJ"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D3LXPABKVLFYUHRYJPM3CSS5MS6FXKS7"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ICBEGRHIPHWPG2VGYS6R4EVKVUUF4AQW"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JSKPGPZQNTAULHW4UH63KGOOUIDE4RRB"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TR6GCO3WTV4D5L23WTCBF275VE6BVNI3"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20190416-0010"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4127-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4127-2"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-P5H9-77XR-72R8

Vulnerability from github – Published: 2026-07-14 00:31 – Updated: 2026-07-14 18:31
VLAI
Details

An issue in MikroTIk (SIA Mikrotikls, Latvia) RouterOS 7.21.x before v.7.21.4 and 7.22.x before v.7.22.2 allows a remote attacker to cause a denial of service via the unflatten() function in libumsg.so.

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

{
  "affected": [],
  "aliases": [
    "CVE-2026-39042"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-13T22:16:46Z",
    "severity": "HIGH"
  },
  "details": "An issue in MikroTIk (SIA Mikrotikls, Latvia) RouterOS 7.21.x before v.7.21.4 and 7.22.x before v.7.22.2 allows a remote attacker to cause a denial of service via the unflatten() function in libumsg.so.",
  "id": "GHSA-p5h9-77xr-72r8",
  "modified": "2026-07-14T18:31:51Z",
  "published": "2026-07-14T00:31:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39042"
    },
    {
      "type": "WEB",
      "url": "https://mikrotik.com/supportsec"
    },
    {
      "type": "WEB",
      "url": "https://zakpatrik.cz/blog/finding-an-integer-overflow-in-mikrotik-routeros-core-ipc-library"
    }
  ],
  "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-P5PJ-G9WC-C3V2

Vulnerability from github – Published: 2025-12-12 21:31 – Updated: 2025-12-17 21:30
VLAI
Details

An integer overflow was addressed by adopting 64-bit timestamps. This issue is fixed in macOS Sonoma 14.8.3, macOS Sequoia 15.7.3. An app may be able to gain root privileges.

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-2025-46285"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-12T21:15:57Z",
    "severity": "HIGH"
  },
  "details": "An integer overflow was addressed by adopting 64-bit timestamps. This issue is fixed in macOS Sonoma 14.8.3, macOS Sequoia 15.7.3. An app may be able to gain root privileges.",
  "id": "GHSA-p5pj-g9wc-c3v2",
  "modified": "2025-12-17T21:30:44Z",
  "published": "2025-12-12T21:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-46285"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125884"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125885"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125886"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125887"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125888"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125889"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125890"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/125891"
    }
  ],
  "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-P644-42G7-JQ85

Vulnerability from github – Published: 2022-05-13 01:38 – Updated: 2022-05-13 01:38
VLAI
Details

xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2017-12179"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190",
      "CWE-391"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-01-24T15:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.",
  "id": "GHSA-p644-42g7-jq85",
  "modified": "2022-05-13T01:38:13Z",
  "published": "2022-05-13T01:38:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12179"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1509220"
    },
    {
      "type": "WEB",
      "url": "https://cgit.freedesktop.org/xorg/xserver/commit/?id=d088e3c1286b548a58e62afdc70bb40981cdb9e8"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201711-05"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2017/dsa-4000"
    }
  ],
  "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-P6Q3-C5P7-24J9

Vulnerability from github – Published: 2022-05-14 03:12 – Updated: 2022-05-14 03:12
VLAI
Details

A malformed OMACP WAP push message can cause memory corruption on a Samsung S7 Edge device when processing the String Extension portion of the WbXml payload. This is due to an integer overflow in memory allocation for this string. The Samsung ID is SVE-2018-11463.

Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2018-10751"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-05-29T20:29:00Z",
    "severity": "MODERATE"
  },
  "details": "A malformed OMACP WAP push message can cause memory corruption on a Samsung S7 Edge device when processing the String Extension portion of the WbXml payload. This is due to an integer overflow in memory allocation for this string. The Samsung ID is SVE-2018-11463.",
  "id": "GHSA-p6q3-c5p7-24j9",
  "modified": "2022-05-14T03:12:36Z",
  "published": "2022-05-14T03:12:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10751"
    },
    {
      "type": "WEB",
      "url": "https://security.samsungmobile.com/securityUpdate.smsb"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/44724"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/147841/Samsung-Galaxy-S7-Edge-OMACP-WbXml-String-Extension-Processing-Overflow.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-P737-3P9F-C6FR

Vulnerability from github – Published: 2022-05-14 03:13 – Updated: 2022-05-14 03:13
VLAI
Details

The mintToken function of a smart contract implementation for LandCoin, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2018-13765"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-09T06:29:00Z",
    "severity": "HIGH"
  },
  "details": "The mintToken function of a smart contract implementation for LandCoin, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.",
  "id": "GHSA-p737-3p9f-c6fr",
  "modified": "2022-05-14T03:13:48Z",
  "published": "2022-05-14T03:13:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13765"
    },
    {
      "type": "WEB",
      "url": "https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20integer%20overflow.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/BlockChainsSecurity/EtherTokens/tree/master/LandCoin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-P795-3XJQ-48VX

Vulnerability from github – Published: 2022-05-24 19:01 – Updated: 2022-06-29 00:00
VLAI
Details

Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.

Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2020-28020"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-05-06T13:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.",
  "id": "GHSA-p795-3xjq-48vx",
  "modified": "2022-06-29T00:00:32Z",
  "published": "2022-05-24T19:01:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28020"
    },
    {
      "type": "WEB",
      "url": "https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/07/25/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/08/03/1"
    }
  ],
  "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"
    }
  ]
}

GHSA-P79C-WVWJ-46G3

Vulnerability from github – Published: 2022-05-24 19:18 – Updated: 2022-05-24 19:18
VLAI
Details

Possible integer overflow due to improper check of batch count value while sanitizer is enabled in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon Wearables

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{
  "affected": [],
  "aliases": [
    "CVE-2021-1949"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-10-20T07:15:00Z",
    "severity": "HIGH"
  },
  "details": "Possible integer overflow due to improper check of batch count value while sanitizer is enabled in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice \u0026 Music, Snapdragon Wearables",
  "id": "GHSA-p79c-wvwj-46g3",
  "modified": "2022-05-24T19:18:24Z",
  "published": "2022-05-24T19:18:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-1949"
    },
    {
      "type": "WEB",
      "url": "https://www.qualcomm.com/company/product-security/bulletins/october-2021-bulletin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-P7F3-29HP-23C8

Vulnerability from github – Published: 2022-05-13 01:25 – Updated: 2022-05-13 01:25
VLAI
Details

Integer overflow in Google Chrome before 9.0.597.107 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving a TEXTAREA element.

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{
  "affected": [],
  "aliases": [
    "CVE-2011-1121"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2011-03-01T23:00:00Z",
    "severity": "HIGH"
  },
  "details": "Integer overflow in Google Chrome before 9.0.597.107 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving a TEXTAREA element.",
  "id": "GHSA-p7f3-29hp-23c8",
  "modified": "2022-05-13T01:25:54Z",
  "published": "2022-05-13T01:25:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-1121"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65739"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14685"
    },
    {
      "type": "WEB",
      "url": "http://code.google.com/p/chromium/issues/detail?id=71855"
    },
    {
      "type": "WEB",
      "url": "http://googlechromereleases.blogspot.com/2011/02/stable-channel-update_28.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.apple.com/archives/security-announce/2011//Jul/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "http://support.apple.com/kb/HT4808"
    },
    {
      "type": "WEB",
      "url": "http://support.apple.com/kb/HT4981"
    },
    {
      "type": "WEB",
      "url": "http://support.apple.com/kb/HT4999"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/46614"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}
Mitigation
Requirements

Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.

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.
  • If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation MIT-4
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 [REF-1482].
  • Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
  • Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
Mitigation MIT-8
Implementation

Strategy: Input Validation

  • Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
  • Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
Mitigation MIT-36
Implementation
  • Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
  • Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation MIT-15
Architecture and Design

For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.

Mitigation MIT-26
Implementation

Strategy: Compilation or Build Hardening

Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.

CAPEC-92: Forced Integer Overflow

This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

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