GHSA-V6X3-9R38-R27Q

Vulnerability from github – Published: 2025-12-14 06:30 – Updated: 2025-12-16 19:30
VLAI?
Summary
Sequoia PGP has Subtraction Overflow when aes_key_unwrap function is provided ciphertext that is too short
Details

In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "sequoia-openpgp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-67897"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-195"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-12-16T19:30:41Z",
    "nvd_published_at": "2025-12-14T05:16:06Z",
    "severity": "MODERATE"
  },
  "details": "In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.",
  "id": "GHSA-v6x3-9r38-r27q",
  "modified": "2025-12-16T19:30:41Z",
  "published": "2025-12-14T06:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67897"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/1122582"
    },
    {
      "type": "PACKAGE",
      "url": "https://gitlab.com/sequoia-pgp/sequoia"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/sequoia-pgp/sequoia/-/blob/b59886e5e7bdf7169ed330f309a6633d131776e5/openpgp/NEWS#L7-L26"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/sequoia-pgp/sequoia/-/commit/b59886e5e7bdf7169ed330f309a6633d131776e5"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0136.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Sequoia PGP has Subtraction Overflow when aes_key_unwrap function is provided ciphertext that is too short"
}


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