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.

3870 vulnerabilities reference this CWE, most recent first.

GHSA-5MMC-Q2G3-8VVM

Vulnerability from github – Published: 2022-05-14 01:56 – Updated: 2022-05-14 01:56
VLAI
Details

utils/ut_ws_svr.c in ViaBTC Exchange Server before 2018-08-21 has an integer overflow leading to memory corruption.

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
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2018-17570"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-09-26T22:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "utils/ut_ws_svr.c in ViaBTC Exchange Server before 2018-08-21 has an integer overflow leading to memory corruption.",
  "id": "GHSA-5mmc-q2g3-8vvm",
  "modified": "2022-05-14T01:56:38Z",
  "published": "2022-05-14T01:56:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17570"
    },
    {
      "type": "WEB",
      "url": "https://github.com/viabtc/viabtc_exchange_server/pull/131"
    },
    {
      "type": "WEB",
      "url": "https://github.com/viabtc/viabtc_exchange_server/commit/4a7c27bfe98f409623d4d857894d017ff0672cc9#diff-515c81af848352583bff286d6224875f"
    }
  ],
  "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-5MRQ-XMWV-VC97

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

SP8DE Token (SPX) is a smart contract running on Ethereum. The mint function has an integer overflow that allows minted tokens to be arbitrarily retrieved by the contract owner.

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-2018-13129"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-04T00:29:00Z",
    "severity": "HIGH"
  },
  "details": "SP8DE Token (SPX) is a smart contract running on Ethereum. The mint function has an integer overflow that allows minted tokens to be arbitrarily retrieved by the contract owner.",
  "id": "GHSA-5mrq-xmwv-vc97",
  "modified": "2022-05-14T03:05:25Z",
  "published": "2022-05-14T03:05:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13129"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dwfault/AirTokens/blob/master/SPXToken/mint%20interger%20overflow.md"
    }
  ],
  "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-5MW8-JWF5-MJH2

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 OTAKUToken, 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-2018-13755"
  ],
  "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 OTAKUToken, 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-5mw8-jwf5-mjh2",
  "modified": "2022-05-14T03:13:47Z",
  "published": "2022-05-14T03:13:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13755"
    },
    {
      "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/OTAKUToken"
    }
  ],
  "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-5P7X-H37P-Q967

Vulnerability from github – Published: 2025-02-14 00:30 – Updated: 2025-02-14 18:30
VLAI
Details

Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Some values of this table are serialized archive according boost library. The version of boost library contains vulnerability integer overflow.

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
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-34399"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-13T22:15:10Z",
    "severity": "CRITICAL"
  },
  "details": "Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. Some values of this table are serialized archive according boost library. The version of boost library contains vulnerability integer overflow.",
  "id": "GHSA-5p7x-h37p-q967",
  "modified": "2025-02-14T18:30:50Z",
  "published": "2025-02-14T00:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34399"
    },
    {
      "type": "WEB",
      "url": "https://securelist.com/mercedes-benz-head-unit-security-research/115218"
    }
  ],
  "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-5PF6-63V3-88HW

Vulnerability from github – Published: 2026-01-14 21:34 – Updated: 2026-01-16 18:31
VLAI
Details

Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc, valloc, pvalloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption.

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

{
  "affected": [],
  "aliases": [
    "CVE-2026-0861"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-14T21:15:52Z",
    "severity": "HIGH"
  },
  "details": "Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc, valloc, pvalloc) in the GNU C Library version 2.30 to 2.42 may result in an integer overflow, which could consequently result in a heap corruption.",
  "id": "GHSA-5pf6-63v3-88hw",
  "modified": "2026-01-16T18:31:23Z",
  "published": "2026-01-14T21:34:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0861"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33796"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0001"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/01/16/5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5PJ6-3HCQ-WV78

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

A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

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-2022-20685"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-15T16:15:21Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in the Modbus preprocessor of the Snort detection engine could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.\nThis vulnerability is due to an integer overflow while processing Modbus traffic. An attacker could exploit this vulnerability by sending crafted Modbus traffic through an affected device. A successful exploit could allow the attacker to cause the Snort process to hang, causing traffic inspection to stop.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.",
  "id": "GHSA-5pj6-3hcq-wv78",
  "modified": "2024-11-15T18:30:49Z",
  "published": "2024-11-15T18:30:49Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-20685"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sna-xss-NXOxDhRQ"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-dos-9D3hJLuj"
    }
  ],
  "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-5PJ8-9WMW-J96M

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

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

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
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-22824"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-01-10T14:12:00Z",
    "severity": "CRITICAL"
  },
  "details": "defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.",
  "id": "GHSA-5pj8-9wmw-j96m",
  "modified": "2022-06-15T00:00:29Z",
  "published": "2022-02-10T00:01:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-22824"
    },
    {
      "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:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5PMR-HJGQ-832V

Vulnerability from github – Published: 2024-10-03 18:30 – Updated: 2025-11-04 00:31
VLAI
Details

An integer overflow vulnerability exists in the Compound Document Binary File format parser of v1.14.52 of the GNOME Project G Structured File Library (libgsf). A specially crafted file can result in an integer overflow that allows for a heap-based buffer overflow when processing the sector allocation table. This can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.

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

{
  "affected": [],
  "aliases": [
    "CVE-2024-42415"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-03T16:15:05Z",
    "severity": "HIGH"
  },
  "details": "An integer overflow vulnerability exists in the Compound Document Binary File format parser of v1.14.52 of the GNOME Project G Structured File Library (libgsf). A specially crafted file can result in an integer overflow that allows for a heap-based buffer overflow when processing the sector allocation table. This can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.",
  "id": "GHSA-5pmr-hjgq-832v",
  "modified": "2025-11-04T00:31:32Z",
  "published": "2024-10-03T18:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42415"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.gnome.org/GNOME/libgsf/-/issues/34"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2024-2069"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2069"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/10/04/3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5PMV-RX8R-WMV5

Vulnerability from github – Published: 2026-07-02 20:45 – Updated: 2026-07-02 20:45
VLAI
Summary
jxl-grid on 32-bit platforms has an out-of-bounds writes due to integer overflow
Details

Summary

On 32-bit platforms, decoding a crafted image may lead to out-of-bounds writes due to integer overflow in length calculation.

Details & PoC

The test listed below fail under miri with command cargo +nightly miri test --release -p jxl-grid

Or you can use Address Sanitizer, which ignores Rust-specific UB like aliasing but still flags out-of-bounds accesses:

RUSTFLAGS=-Zsanitizer=address cargo +nightly test -Zbuild-std -p jxl-grid --release --target x86_64-unknown-linux-gnu

The following tests should be appended to crates/jxl-grid/src/test/subgrids.rs:

mod miri_ub {
    use super::*;

    // `AlignedGrid::with_alloc_tracker` computes `width * height` unchecked. In release, overflow
    // can create a tiny backing buffer for huge logical dimensions.
    #[test]
    fn aligned_grid_dimension_product_overflows() {
        let width = usize::MAX / 2 + 1;
        let mut grid = AlignedGrid::<u8>::with_alloc_tracker(width, 2, None).unwrap();
        let mut subgrid = grid.as_subgrid_mut();
        *subgrid.get_mut(0, 1) = 1;
        std::hint::black_box(grid);
    }
}

This issue can be reachable through decoding a crafted image in two ways:

  1. Huge actual frame A frame such as 65536 x 65536 passes the current frame area limit (2^32 <= 2^40) but overflows usize element count on 32-bit. Rendering then allocates too-small AlignedGrids in modular/VarDCT/filter paths and later writes through mutable subgrids.

  2. Huge canvas plus tiny cropped frame This is the more practical “small payload, huge logical output” case. A bitstream-controlled frame crop can be tiny, but if the canvas/default requested region is huge, composition can allocate an output grid sized to the canvas/ROI at crates/jxl-render/src/blend.rs. That is bitstream frame cropping, not API crop. With a 32-bit target and a full requested image region whose area overflows, this can happen through ordinary render_frame().

Impact

On 32-bit platforms this can cause out-of-bounds writes with attacker-controlled data when decoding a crafted JPEG XL image. This could allow arbitrary code execution.

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

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.6.1"
      },
      "package": {
        "ecosystem": "crates.io",
        "name": "jxl-grid"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-52834"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122",
      "CWE-131",
      "CWE-190"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-02T20:45:59Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Summary\n\nOn 32-bit platforms, decoding a crafted image may lead to out-of-bounds writes due to integer overflow in length calculation.\n\n### Details \u0026 PoC\n\nThe test listed below fail under miri with command `cargo +nightly miri test --release -p jxl-grid`\n\nOr you can use Address Sanitizer, which ignores Rust-specific UB like aliasing but still flags out-of-bounds accesses:\n\n`RUSTFLAGS=-Zsanitizer=address cargo +nightly test -Zbuild-std -p jxl-grid --release --target x86_64-unknown-linux-gnu`\n\nThe following tests should be appended to `crates/jxl-grid/src/test/subgrids.rs`:\n\n```rust\nmod miri_ub {\n    use super::*;\n\n    // `AlignedGrid::with_alloc_tracker` computes `width * height` unchecked. In release, overflow\n    // can create a tiny backing buffer for huge logical dimensions.\n    #[test]\n    fn aligned_grid_dimension_product_overflows() {\n        let width = usize::MAX / 2 + 1;\n        let mut grid = AlignedGrid::\u003cu8\u003e::with_alloc_tracker(width, 2, None).unwrap();\n        let mut subgrid = grid.as_subgrid_mut();\n        *subgrid.get_mut(0, 1) = 1;\n        std::hint::black_box(grid);\n    }\n}\n```\n\nThis issue can be reachable through decoding a crafted image in two ways:\n\n1. **Huge actual frame**\n   A frame such as `65536 x 65536` passes the current frame area limit (`2^32 \u003c= 2^40`) but overflows `usize` element count on 32-bit. Rendering then allocates too-small `AlignedGrid`s in modular/VarDCT/filter paths and later writes through mutable subgrids.\n\n2. **Huge canvas plus tiny cropped frame**\n   This is the more practical \u201csmall payload, huge logical output\u201d case. A bitstream-controlled frame crop can be tiny, but if the canvas/default requested region is huge, composition can allocate an output grid sized to the canvas/ROI at crates/jxl-render/src/blend.rs. That is bitstream frame cropping, not API crop. With a 32-bit target and a full requested image region whose area overflows, this can happen through ordinary `render_frame()`.\n\n### Impact\n\nOn 32-bit platforms this can cause out-of-bounds writes with attacker-controlled data when decoding a crafted JPEG XL image. This could allow arbitrary code execution.",
  "id": "GHSA-5pmv-rx8r-wmv5",
  "modified": "2026-07-02T20:45:59Z",
  "published": "2026-07-02T20:45:59Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/tirr-c/jxl-oxide/security/advisories/GHSA-5pmv-rx8r-wmv5"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/tirr-c/jxl-oxide"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2026-0151.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "jxl-grid on 32-bit platforms has an out-of-bounds writes due to integer overflow"
}

GHSA-5PPP-75WH-GGQR

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 Yumerium, 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-2018-13762"
  ],
  "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 Yumerium, 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-5ppp-75wh-ggqr",
  "modified": "2022-05-14T03:13:48Z",
  "published": "2022-05-14T03:13:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13762"
    },
    {
      "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/Yumerium"
    }
  ],
  "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"
    }
  ]
}
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.

← Back to the CWE list