github - ghsa-w789-3q45-984r

ghsa-w789-3q45-984r

Vulnerability from github

Published

2025-12-28 00:30

Modified

2025-12-28 00:30

Severity ?

5.9 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Details

In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68972"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-27T23:15:40Z",
    "severity": "MODERATE"
  },
  "details": "In GnuPG through 2.4.8, if a signed message has \\f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an \"invalid armor\" message is printed during verification). This is related to use of \\f as a marker to denote truncation of a long plaintext line.",
  "id": "GHSA-w789-3q45-984r",
  "modified": "2025-12-28T00:30:23Z",
  "published": "2025-12-28T00:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68972"
    },
    {
      "type": "WEB",
      "url": "https://gpg.fail/formfeed"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=46404339"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-68972 (GCVE-0-2025-68972)

Vulnerability from cvelistv5

Published

2025-12-27 22:52

Modified

2025-12-29 16:51

Severity ?

5.9 (Medium) - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Summary

In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.

References

URL

Tags

	https://gpg.fail/formfeed
	https://news.ycombinator.com/item?id=46404339

Impacted products

	Vendor	Product	Version
	GnuPG	GnuPG	Version: 0 ≤ 2.4.8

Show details on NVD website

To clipboard

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