Common Weakness Enumeration

CWE-190

Allowed

Integer Overflow or Wraparound

Abstraction: Base · Status: Stable

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.

3867 vulnerabilities reference this CWE, most recent first.

GHSA-84RC-9J6H-7JH3

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 JixoCoin, 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.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-13728"
  ],
  "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 JixoCoin, 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-84rc-9j6h-7jh3",
  "modified": "2022-05-14T03:13:33Z",
  "published": "2022-05-14T03:13:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13728"
    },
    {
      "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/JixoCoin"
    }
  ],
  "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-84RM-QF37-FGC2

Vulnerability from github – Published: 2021-08-25 20:52 – Updated: 2021-08-19 17:35
VLAI
Summary
Integer Overflow in openssl-src
Details

Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "openssl-src"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "111.14.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-23841"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190",
      "CWE-476"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-08-19T17:35:19Z",
    "nvd_published_at": "2021-02-16T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).",
  "id": "GHSA-84rm-qf37-fgc2",
  "modified": "2021-08-19T17:35:19Z",
  "published": "2021-08-25T20:52:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23841"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2021-09"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2021-03"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
    },
    {
      "type": "WEB",
      "url": "https://www.openssl.org/news/secadv/20210216.txt"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4855"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT212534"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT212529"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT212528"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210513-0002"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210219-0009"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202103-03"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0058.html"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0058"
    },
    {
      "type": "WEB",
      "url": "https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44846"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/alexcrichton/openssl-src-rs"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=9b1129239f3ebb1d1c98ce9ed41d5c9476c47cb2"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=8252ee4d90f3f2004d3d0aeeed003ad49c9a7807"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6a51b9e1d0cf0bf8515f7201b68fb0a3482b3dc1"
    },
    {
      "type": "WEB",
      "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=122a19ab48091c657f7cb1fb3af9fc07bd557bbf"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2021/May/67"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2021/May/68"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2021/May/70"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Integer Overflow in openssl-src"
}

GHSA-8529-MV6J-5XQW

Vulnerability from github – Published: 2022-05-14 03:02 – Updated: 2022-05-14 03:02
VLAI
Details

The mintToken function of a smart contract implementation for TheGoDgital, 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.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-13658"
  ],
  "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 TheGoDgital, 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-8529-mv6j-5xqw",
  "modified": "2022-05-14T03:02:39Z",
  "published": "2022-05-14T03:02:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13658"
    },
    {
      "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/TheGoDgital"
    }
  ],
  "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-857Q-6V86-XP84

Vulnerability from github – Published: 2026-01-30 09:30 – Updated: 2026-06-02 15:31
VLAI
Details

In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-25210"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-30T07:16:15Z",
    "severity": "MODERATE"
  },
  "details": "In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation.",
  "id": "GHSA-857q-6v86-xp84",
  "modified": "2026-06-02T15:31:51Z",
  "published": "2026-01-30T09:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25210"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libexpat/libexpat/pull/1075"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libexpat/libexpat/pull/1075/commits/9c2d990389e6abe2e44527eeaa8b39f16fe859c7"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-8593-H9PQ-2QM4

Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-05-26 00:01
VLAI
Details

In Plib through 1.85, there is an integer overflow vulnerability that could result in arbitrary code execution. The vulnerability is found in ssgLoadTGA() function in src/ssg/ssgLoadTGA.cxx file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-38714"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-24T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "In Plib through 1.85, there is an integer overflow vulnerability that could result in arbitrary code execution. The vulnerability is found in ssgLoadTGA() function in src/ssg/ssgLoadTGA.cxx file.",
  "id": "GHSA-8593-h9pq-2qm4",
  "modified": "2022-05-26T00:01:32Z",
  "published": "2022-05-24T19:12:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38714"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00000.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7HT3BKNAXLDY246UPUNRSBPGGVANRDOU"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OTVSAKNCEYVMVAURQSB5GNA2MWL4XDPH"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5SML6W6Z2B6THT76VPUKUFYQJABODFU"
    },
    {
      "type": "WEB",
      "url": "https://sourceforge.net/p/plib/bugs/55"
    }
  ],
  "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-85G4-FXFM-W35M

Vulnerability from github – Published: 2026-04-22 09:31 – Updated: 2026-04-22 09:31
VLAI
Details

Integer overflow in output tensor copy size calculation in Samsung Open Source ONE could cause incorrect copy length and memory corruption for oversized tensors. Affected version is prior to commit 1.30.0.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-40450"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T07:16:13Z",
    "severity": "MODERATE"
  },
  "details": "Integer overflow in output tensor copy size calculation in Samsung Open Source ONE could cause incorrect copy length and memory corruption for oversized tensors.\nAffected version is prior to commit  1.30.0.",
  "id": "GHSA-85g4-fxfm-w35m",
  "modified": "2026-04-22T09:31:31Z",
  "published": "2026-04-22T09:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40450"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Samsung/ONE/pull/16481"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-85GR-RG4G-X7J6

Vulnerability from github – Published: 2022-05-17 02:43 – Updated: 2025-04-20 03:38
VLAI
Details

libautotrace.a in AutoTrace 0.31.1 has a "cannot be represented in type int" issue in input-tga.c:528:63.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-9200"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-05-23T04:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "libautotrace.a in AutoTrace 0.31.1 has a \"cannot be represented in type int\" issue in input-tga.c:528:63.",
  "id": "GHSA-85gr-rg4g-x7j6",
  "modified": "2025-04-20T03:38:10Z",
  "published": "2022-05-17T02:43:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9200"
    },
    {
      "type": "WEB",
      "url": "https://blogs.gentoo.org/ago/2017/05/20/autotrace-multiple-vulnerabilities-the-autotrace-nightmare"
    }
  ],
  "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-85JH-G778-MW6J

Vulnerability from github – Published: 2022-07-20 00:00 – Updated: 2022-07-27 00:00
VLAI
Details

Integer Overflow or Wraparound in GitHub repository gpac/gpac prior to 2.1-DEV.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2022-2454"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-19T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "Integer Overflow or Wraparound in GitHub repository gpac/gpac prior to 2.1-DEV.",
  "id": "GHSA-85jh-g778-mw6j",
  "modified": "2022-07-27T00:00:39Z",
  "published": "2022-07-20T00:00:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2454"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpac/gpac/commit/faa75edde3dfeba1e2cf6ffa48e45a50f1042096"
    },
    {
      "type": "WEB",
      "url": "https://huntr.dev/bounties/105d40d0-46d7-461e-9f8e-20c4cdea925f"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5411"
    }
  ],
  "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-85MJ-H68W-W736

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

Nginx versions since 0.5.6 up to and including 1.13.2 are vulnerable to integer overflow vulnerability in nginx range filter module resulting into leak of potentially sensitive information triggered by specially crafted request.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-7529"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-07-13T13:29:00Z",
    "severity": "HIGH"
  },
  "details": "Nginx versions since 0.5.6 up to and including 1.13.2 are vulnerable to integer overflow vulnerability in nginx range filter module resulting into leak of potentially sensitive information triggered by specially crafted request.",
  "id": "GHSA-85mj-h68w-w736",
  "modified": "2022-05-13T01:04:15Z",
  "published": "2022-05-13T01:04:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7529"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:2538"
    },
    {
      "type": "WEB",
      "url": "https://puppet.com/security/cve/cve-2017-7529"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT212818"
    },
    {
      "type": "WEB",
      "url": "http://mailman.nginx.org/pipermail/nginx-announce/2017/000200.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2021/Sep/36"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/99534"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1039238"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-85Q7-RC99-2J3M

Vulnerability from github – Published: 2022-05-24 17:32 – Updated: 2023-01-09 18:30
VLAI
Details

An integer overflow was addressed through improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. Processing a maliciously crafted image may lead to arbitrary code execution.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-9875"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-10-22T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "An integer overflow was addressed through improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. Processing a maliciously crafted image may lead to arbitrary code execution.",
  "id": "GHSA-85q7-rc99-2j3m",
  "modified": "2023-01-09T18:30:25Z",
  "published": "2022-05-24T17:32:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9875"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211288"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211289"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211290"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211291"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211293"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211294"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT211295"
    }
  ],
  "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"
    }
  ]
}

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.