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.

3942 vulnerabilities reference this CWE, most recent first.

GHSA-97F8-83VC-C97Q

Vulnerability from github – Published: 2022-02-10 00:01 – Updated: 2022-06-15 00:00

Details

storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

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-2022-22827"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-10T14:12:00Z",
    "severity": "HIGH"
  },
  "details": "storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
  "id": "GHSA-97f8-83vc-c97q",
  "modified": "2022-06-15T00:00:29Z",
  "published": "2022-02-10T00:01:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22827"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libexpat/libexpat/pull/539"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202209-24"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5073"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2022-05"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/01/17/3"
    }
  ],
  "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-97FJ-F2H9-W8WJ

Vulnerability from github – Published: 2026-07-30 03:31 – Updated: 2026-07-30 18:31

Details

Integer overflow in libxml in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

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-2026-17705"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-30T01:16:32Z",
    "severity": "HIGH"
  },
  "details": "Integer overflow in libxml in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)",
  "id": "GHSA-97fj-f2h9-w8wj",
  "modified": "2026-07-30T18:31:27Z",
  "published": "2026-07-30T03:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17705"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/519665978"
    }
  ],
  "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-97WC-2HQC-CJGR

Vulnerability from github – Published: 2026-05-09 00:02 – Updated: 2026-06-08 23:35

Summary

smallbitvec: Integer overflow in safe API leads to heap buffer overflow

Details

Summary

An integer overflow in the internal capacity calculation of smallbitvec can lead to an undersized heap allocation, resulting in a heap buffer overflow through safe APIs only. This allows memory corruption without requiring unsafe code from the caller.

Details

The issue originates from unchecked arithmetic in the internal helper function responsible for computing the required buffer size:

(cap + bits_per_storage() - 1) / bits_per_storage()

When cap is close to usize::MAX, the addition:

cap + bits_per_storage() - 1

can overflow in release builds and wrap around due to Rust’s default wrapping semantics for integer overflow in optimized builds.

As a result: - buffer_len(cap) may return a value significantly smaller than required. - The backing storage is allocated with insufficient size. - Internal metadata (logical length/capacity) reflects a much larger size than the actual allocation.

Subsequent safe API calls (e.g., set, push, reserve) rely on this corrupted metadata and perform index computations that assume sufficient backing storage. These operations eventually reach unsafe internal code paths (e.g., pointer arithmetic and unchecked indexing), leading to out-of-bounds memory access.

Summary of the issue: integer overflow → undersized allocation → inconsistent metadata (len/cap vs actual buffer) → unsafe internal access using corrupted metadata → heap buffer overflow (UB)

PoC

PoC 1: Out-of-bounds write via `from_elem`

#![forbid(unsafe_code)]

use smallbitvec::SmallBitVec;

fn main() {
    // Triggers overflow in buffer_len(cap)
    let mut v = SmallBitVec::from_elem(usize::MAX, false);

    // Logical length is large, but backing storage is undersized
    // This leads to out-of-bounds write in unsafe internals
    v.set(0, true);
}

PoC 2: Overflow via `reserve`

#![forbid(unsafe_code)]

use smallbitvec::SmallBitVec;

fn main() {
    let mut v = SmallBitVec::new();
    v.push(true);

    // Triggers overflow in capacity computation
    v.reserve(usize::MAX - 10);
}

Impact

Heap buffer overflow via safe API only
ASAN-observable heap-buffer-overflow
Undefined Behavior detectable with Miri (e.g., out-of-bounds indexing due to corrupted metadata)

Tested on

rustc 1.96.0-nightly (9602bda1d 2026-04-05)
Target: x86_64-unknown-linux-gnu
Build: release
ASAN: RUSTFLAGS="-Z sanitizer=address" cargo +nightly run --release
Miri: cargo +nightly miri run --release

Severity

7.3 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "smallbitvec"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.0.1"
            },
            {
              "last_affected": "2.6.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44983"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122",
      "CWE-190"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-09T00:02:47Z",
    "nvd_published_at": "2026-05-26T22:16:43Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nAn integer overflow in the internal capacity calculation of `smallbitvec` can lead to an undersized heap allocation, resulting in a heap buffer overflow through safe APIs only. This allows memory corruption without requiring `unsafe` code from the caller.\n\n### Details\nThe issue originates from unchecked arithmetic in the internal helper function responsible for computing the required buffer size:\n\n```\n(cap + bits_per_storage() - 1) / bits_per_storage()\n```\n\nWhen `cap` is close to `usize::MAX`, the addition:\n\n```\ncap + bits_per_storage() - 1\n```\n\ncan overflow in release builds and wrap around due to Rust\u2019s default wrapping semantics for integer overflow in optimized builds.\n\nAs a result:\n- `buffer_len(cap)` may return a value significantly smaller than required.\n- The backing storage is allocated with insufficient size.\n- Internal metadata (logical length/capacity) reflects a much larger size than the actual allocation.\n\nSubsequent safe API calls (e.g., `set`, `push`, `reserve`) rely on this corrupted metadata and perform index computations that assume sufficient backing storage. These operations eventually reach unsafe internal code paths (e.g., pointer arithmetic and unchecked indexing), leading to out-of-bounds memory access.\n\nSummary of the issue:\ninteger overflow\n\u2192 undersized allocation\n\u2192 inconsistent metadata (len/cap vs actual buffer)\n\u2192 unsafe internal access using corrupted metadata\n\u2192 heap buffer overflow (UB)\n### PoC\n#### PoC 1: Out-of-bounds write via `from_elem`\n```rust\n#![forbid(unsafe_code)]\n\nuse smallbitvec::SmallBitVec;\n\nfn main() {\n    // Triggers overflow in buffer_len(cap)\n    let mut v = SmallBitVec::from_elem(usize::MAX, false);\n\n    // Logical length is large, but backing storage is undersized\n    // This leads to out-of-bounds write in unsafe internals\n    v.set(0, true);\n}\n```\n#### PoC 2: Overflow via `reserve`\n```rust\n#![forbid(unsafe_code)]\n\nuse smallbitvec::SmallBitVec;\n\nfn main() {\n    let mut v = SmallBitVec::new();\n    v.push(true);\n\n    // Triggers overflow in capacity computation\n    v.reserve(usize::MAX - 10);\n}\n```\n\n### Impact\n- Heap buffer overflow via safe API only\n- ASAN-observable heap-buffer-overflow\n- Undefined Behavior detectable with Miri (e.g., out-of-bounds indexing due to corrupted metadata)\n\n### Tested on\n- rustc 1.96.0-nightly (9602bda1d 2026-04-05)\n- Target: x86_64-unknown-linux-gnu\n- Build: release\n- ASAN: `RUSTFLAGS=\"-Z sanitizer=address\" cargo +nightly run --release`\n- Miri: `cargo +nightly miri run --release`",
  "id": "GHSA-97wc-2hqc-cjgr",
  "modified": "2026-06-08T23:35:08Z",
  "published": "2026-05-09T00:02:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/servo/smallbitvec/security/advisories/GHSA-97wc-2hqc-cjgr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44983"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/servo/smallbitvec"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "smallbitvec: Integer overflow in safe API leads to heap buffer overflow"
}

GHSA-97XH-JVGW-7W42

Vulnerability from github – Published: 2024-01-08 15:30 – Updated: 2024-04-09 21:31

Details

Multiple integer overflow vulnerabilities exist in the LXT2 facgeometry parsing functionality of GTKWave 3.3.115. A specially crafted .lxt2 file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the integer overflow when allocating the flags array.

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-2023-39273"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-08T15:15:23Z",
    "severity": "HIGH"
  },
  "details": "Multiple integer overflow vulnerabilities exist in the LXT2 facgeometry parsing functionality of GTKWave 3.3.115. A specially crafted .lxt2 file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the integer overflow when allocating the `flags` array.",
  "id": "GHSA-97xh-jvgw-7w42",
  "modified": "2024-04-09T21:31:55Z",
  "published": "2024-01-08T15:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39273"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1818"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1818"
    }
  ],
  "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-9825-56CX-CFG6

Vulnerability from github – Published: 2025-01-10 12:30 – Updated: 2025-11-03 18:31

Details

FastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.

Severity

9.3 (Critical)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2025-23016"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-10T12:15:25Z",
    "severity": "CRITICAL"
  },
  "details": "FastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.",
  "id": "GHSA-9825-56cx-cfg6",
  "modified": "2025-11-03T18:31:15Z",
  "published": "2025-01-10T12:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23016"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FastCGI-Archives/fcgi2/issues/67"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00009.html"
    },
    {
      "type": "WEB",
      "url": "https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/04/23/4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-9825-W3X3-WRQ3

Vulnerability from github – Published: 2022-05-13 01:24 – Updated: 2022-05-13 01:24

Details

Multiple integer overflows in Google Chrome before 7.0.517.44 on Linux allow remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted font.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2010-4202"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2010-11-06T00:00:00Z",
    "severity": "CRITICAL"
  },
  "details": "Multiple integer overflows in Google Chrome before 7.0.517.44 on Linux allow remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted font.",
  "id": "GHSA-9825-w3x3-wrq3",
  "modified": "2022-05-13T01:24:53Z",
  "published": "2022-05-13T01:24:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2010-4202"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14277"
    },
    {
      "type": "WEB",
      "url": "http://code.google.com/p/chromium/issues/detail?id=59320"
    },
    {
      "type": "WEB",
      "url": "http://googlechromereleases.blogspot.com/2010/11/stable-channel-update.html"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/42109"
    }
  ],
  "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-983X-288J-FCJV

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

Details

The mintToken function of a smart contract implementation for CDcurrency, 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

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{
  "affected": [],
  "aliases": [
    "CVE-2018-13611"
  ],
  "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 CDcurrency, 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-983x-288j-fcjv",
  "modified": "2022-05-14T03:02:19Z",
  "published": "2022-05-14T03:02:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13611"
    },
    {
      "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/CDcurrency"
    }
  ],
  "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-984G-34WW-RVQ9

Vulnerability from github – Published: 2024-06-10 21:30 – Updated: 2026-04-02 21:31

Details

An integer overflow was addressed with improved input validation. This issue is fixed in tvOS 17.5, iOS 16.7.8 and iPadOS 16.7.8, visionOS 1.2, Safari 17.5, iOS 17.5 and iPadOS 17.5. Processing maliciously crafted web content may lead to arbitrary code execution.

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-2024-27833"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-10T21:15:51Z",
    "severity": "HIGH"
  },
  "details": "An integer overflow was addressed with improved input validation. This issue is fixed in tvOS 17.5, iOS 16.7.8 and iPadOS 16.7.8, visionOS 1.2, Safari 17.5, iOS 17.5 and iPadOS 17.5. Processing maliciously crafted web content may lead to arbitrary code execution.",
  "id": "GHSA-984g-34ww-rvq9",
  "modified": "2026-04-02T21:31:45Z",
  "published": "2024-06-10T21:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27833"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/120896"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/120898"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/120901"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/120905"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/120906"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT214100"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT214101"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT214102"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT214103"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/HT214108"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT214100"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT214102"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT214103"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/kb/HT214108"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Jun/5"
    }
  ],
  "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-988P-JH3P-GXWH

Vulnerability from github – Published: 2026-06-09 09:32 – Updated: 2026-06-09 09:32

Details

DoS vulnerability in the log service. Impact: Successful exploitation of this vulnerability may affect availability.

Severity

5.0 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L

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{
  "affected": [],
  "aliases": [
    "CVE-2026-41977"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-09T08:16:27Z",
    "severity": "MODERATE"
  },
  "details": "DoS vulnerability in the log service.\u00a0Impact: Successful exploitation of this vulnerability may affect availability.",
  "id": "GHSA-988p-jh3p-gxwh",
  "modified": "2026-06-09T09:32:06Z",
  "published": "2026-06-09T09:32:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41977"
    },
    {
      "type": "WEB",
      "url": "https://consumer.huawei.com/en/support/bulletin/2026/6"
    },
    {
      "type": "WEB",
      "url": "https://consumer.huawei.com/en/support/bulletinvision/2026/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-98FC-8MVH-6QGF

Vulnerability from github – Published: 2022-04-15 00:00 – Updated: 2022-04-22 00:00

Details

A heap-based buffer overflow vulnerability exists in the DecoderStream::Append functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

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-2021-21914"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122",
      "CWE-190",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-04-14T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "A heap-based buffer overflow vulnerability exists in the DecoderStream::Append functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.",
  "id": "GHSA-98fc-8mvh-6qgf",
  "modified": "2022-04-22T00:00:52Z",
  "published": "2022-04-15T00:00:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21914"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1362"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation

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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CWE-190

Integer Overflow or Wraparound

Summary

Details

PoC

PoC 1: Out-of-bounds write via from_elem

PoC 2: Overflow via reserve

Impact

Tested on

Mitigation

Mitigation MIT-3

Mitigation MIT-4

Mitigation MIT-8

Mitigation MIT-36

Mitigation MIT-15

Mitigation MIT-26

CAPEC-92: Forced Integer Overflow

PoC 1: Out-of-bounds write via `from_elem`

PoC 2: Overflow via `reserve`