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.

3907 vulnerabilities reference this CWE, most recent first.

GHSA-CQWW-FVWV-8HFG

Vulnerability from github – Published: 2023-09-05 09:30 – Updated: 2024-04-04 07:26
VLAI
Details

Memory corruption in Audio while validating and mapping metadata.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-21655"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-09-05T07:15:12Z",
    "severity": "HIGH"
  },
  "details": "Memory corruption in Audio while validating and mapping metadata.",
  "id": "GHSA-cqww-fvwv-8hfg",
  "modified": "2024-04-04T07:26:59Z",
  "published": "2023-09-05T09:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-21655"
    },
    {
      "type": "WEB",
      "url": "https://www.qualcomm.com/company/product-security/bulletins/september-2023-bulletin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CR2W-747Q-47QC

Vulnerability from github – Published: 2026-06-16 09:32 – Updated: 2026-07-23 12:32
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

net/sched: fix pedit partial COW leading to page cache corruption

tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hint does not account for the runtime header offset added by typed keys. This can leave part of the write region un-COW'd.

Fix by moving skb_ensure_writable() inside the per-key loop where the actual write offset is known, and add overflow checking on the offset arithmetic. For negative offsets (e.g. Ethernet header edits at ingress), use skb_cow() to COW the headroom instead. Guard offset_valid() against INT_MIN, where negation is undefined.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-46331"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-16T08:16:23Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: fix pedit partial COW leading to page cache corruption\n\ntcf_pedit_act() computes the COW range for skb_ensure_writable()\nonce before the key loop using tcfp_off_max_hint, but the hint does\nnot account for the runtime header offset added by typed keys. This\ncan leave part of the write region un-COW\u0027d.\n\nFix by moving skb_ensure_writable() inside the per-key loop where\nthe actual write offset is known, and add overflow checking on the\noffset arithmetic. For negative offsets (e.g. Ethernet header edits\nat ingress), use skb_cow() to COW the headroom instead. Guard\noffset_valid() against INT_MIN, where negation is undefined.",
  "id": "GHSA-cr2w-747q-47qc",
  "modified": "2026-07-23T12:32:21Z",
  "published": "2026-06-16T09:32:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27288"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33221"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33222"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33223"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33224"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33225"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33666"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:34048"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:34098"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:40021"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46331"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3dee9d0c198faeb95d052c1b94c2958751a28512"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/544d857b42a1734b923040e13aa61a6fd4746cf2"
    },
    {
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      "url": "https://git.kernel.org/stable/c/899ee91156e57784090c5565e4f31bd7dbffbc5a"
    },
    {
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      "url": "https://git.kernel.org/stable/c/a071e057518decc5e3bec89855758f5f8786f2c5"
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      "url": "https://git.kernel.org/stable/c/b198ed4e52580a7238c7c7082f03906f8b310313"
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    {
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      "url": "https://git.kernel.org/stable/c/d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sgkdev/packet_edit_meme/tree/main"
    },
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      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46331.json"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27353"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27354"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27355"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27704"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27705"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27706"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27707"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27708"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27709"
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27731"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:27789"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:28887"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:28962"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:29080"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:29794"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:29799"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:29833"
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:29856"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:29863"
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      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33219"
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    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:33220"
    }
  ],
  "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-CR4J-59JC-XQHG

Vulnerability from github – Published: 2022-05-14 03:52 – Updated: 2022-05-14 03:52
VLAI
Details

kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (integer overflow and memory corruption) or possibly have unspecified other impact by leveraging unrestricted integer values for pointer arithmetic.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-17854"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-12-27T17:08:00Z",
    "severity": "HIGH"
  },
  "details": "kernel/bpf/verifier.c in the Linux kernel through 4.14.8 allows local users to cause a denial of service (integer overflow and memory corruption) or possibly have unspecified other impact by leveraging unrestricted integer values for pointer arithmetic.",
  "id": "GHSA-cr4j-59jc-xqhg",
  "modified": "2022-05-14T03:52:03Z",
  "published": "2022-05-14T03:52:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-17854"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/bb7f0f989ca7de1153bd128a40a71709e339fa03"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb7f0f989ca7de1153bd128a40a71709e339fa03"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2017/12/21/2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CR55-R982-R575

Vulnerability from github – Published: 2022-05-14 03:01 – Updated: 2022-05-14 03:01
VLAI
Details

The mintToken function of a smart contract implementation for MktCoin, 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-2018-13568"
  ],
  "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 MktCoin, 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-cr55-r982-r575",
  "modified": "2022-05-14T03:01:43Z",
  "published": "2022-05-14T03:01:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13568"
    },
    {
      "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/MktCoin"
    }
  ],
  "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-CRJR-WFH2-WV8H

Vulnerability from github – Published: 2024-07-09 21:30 – Updated: 2024-07-09 21:30
VLAI
Details

Bridge versions 14.0.4, 13.0.7, 14.1 and earlier are affected by an Integer Overflow or Wraparound vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-34139"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-09T20:15:11Z",
    "severity": "HIGH"
  },
  "details": "Bridge versions 14.0.4, 13.0.7, 14.1 and earlier are affected by an Integer Overflow or Wraparound vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
  "id": "GHSA-crjr-wfh2-wv8h",
  "modified": "2024-07-09T21:30:37Z",
  "published": "2024-07-09T21:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34139"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/bridge/apsb24-51.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CRMW-GX3F-2CG6

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

The mintToken function of a smart contract implementation for DinsteinCoin, 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-2018-13671"
  ],
  "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 DinsteinCoin, 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-crmw-gx3f-2cg6",
  "modified": "2022-05-14T03:12:36Z",
  "published": "2022-05-14T03:12:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13671"
    },
    {
      "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/DinsteinCoin"
    }
  ],
  "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-CRQC-M66H-CVR4

Vulnerability from github – Published: 2024-11-29 21:31 – Updated: 2024-12-02 18:31
VLAI
Details

An integer overflow in the component /libavformat/westwood_vqa.c of FFmpeg n6.1.1 allows attackers to cause a denial of service in the application via a crafted VQA file.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-36616"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-29T19:15:07Z",
    "severity": "MODERATE"
  },
  "details": "An integer overflow in the component /libavformat/westwood_vqa.c of FFmpeg n6.1.1 allows attackers to cause a denial of service in the application via a crafted VQA file.",
  "id": "GHSA-crqc-m66h-cvr4",
  "modified": "2024-12-02T18:31:55Z",
  "published": "2024-11-29T21:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-36616"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ffmpeg/ffmpeg/commit/86f73277bf014e2ce36dd2594f1e0fb8b3bd6661"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/1047524396/ded3e1509d8296ec4a91817867d108e0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FFmpeg/FFmpeg/blob/n6.1.1/libavformat/westwood_vqa.c#L265"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CRQH-2V7R-3M9W

Vulnerability from github – Published: 2026-06-19 18:32 – Updated: 2026-06-19 18:32
VLAI
Details

An integer overflow vulnerability was found in the virtio-snd device via PCM_INFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-3196"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-19T17:16:22Z",
    "severity": "MODERATE"
  },
  "details": "An integer overflow vulnerability was found in the virtio-snd device via PCM_INFO requests from the guest. A malicious guest can provide out-of-bounds stream counts, potentially leading to unbounded memory allocation on the host and a denial of service condition.",
  "id": "GHSA-crqh-2v7r-3m9w",
  "modified": "2026-06-19T18:32:33Z",
  "published": "2026-06-19T18:32:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3196"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-3196"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2443789"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CRXV-HWQ9-WJ7H

Vulnerability from github – Published: 2022-05-17 03:05 – Updated: 2025-04-20 03:30
VLAI
Details

When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will use a field from the structure in an operation that can cause the integer to overflow. This result is then used to allocate memory to copy file data in. Due to the lack of bounds checking on the integer, the allocated memory buffer can be made to be undersized at which point the reading of file data will write outside the bounds of the buffer. This can lead to code execution under the context of the application.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2016-4291"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-01-06T21:59:00Z",
    "severity": "HIGH"
  },
  "details": "When opening a Hangul HShow Document (.hpt) and processing a structure within the document, Hancom Office 2014 will use a field from the structure in an operation that can cause the integer to overflow. This result is then used to allocate memory to copy file data in. Due to the lack of bounds checking on the integer, the allocated memory buffer can be made to be undersized at which point the reading of file data will write outside the bounds of the buffer. This can lead to code execution under the context of the application.",
  "id": "GHSA-crxv-hwq9-wj7h",
  "modified": "2025-04-20T03:30:49Z",
  "published": "2022-05-17T03:05:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4291"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/92325"
    },
    {
      "type": "WEB",
      "url": "http://www.talosintelligence.com/reports/TALOS-2016-0146"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-CV98-8VRR-W24C

Vulnerability from github – Published: 2022-05-13 01:39 – Updated: 2022-05-13 01:39
VLAI
Details

The mintToken function of a smart contract implementation for Cranoo (CRN), 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-2018-13195"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-05T02:29:00Z",
    "severity": "HIGH"
  },
  "details": "The mintToken function of a smart contract implementation for Cranoo (CRN), 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-cv98-8vrr-w24c",
  "modified": "2022-05-13T01:39:40Z",
  "published": "2022-05-13T01:39:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13195"
    },
    {
      "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/CranooAdvanced"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/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.