Vulnerability-Lookup

GHSA-PJ23-86WW-F72P

Vulnerability from github – Published: 2025-12-28 18:30 – Updated: 2026-01-02 21:30

Details

In GnuPG through 2.4.8, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input.

Severity ?

7.8 (High)


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

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  "affected": [],
  "aliases": [
    "CVE-2025-68973"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-675",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-28T17:16:01Z",
    "severity": "HIGH"
  },
  "details": "In GnuPG through 2.4.8, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input.",
  "id": "GHSA-pj23-86ww-f72p",
  "modified": "2026-01-02T21:30:27Z",
  "published": "2025-12-28T18:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68973"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306"
    },
    {
      "type": "WEB",
      "url": "https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51"
    },
    {
      "type": "WEB",
      "url": "https://gpg.fail/memcpy"
    },
    {
      "type": "WEB",
      "url": "https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=46403200"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2025/12/28/5"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/12/29/11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-68973 (GCVE-0-2025-68973)

Vulnerability from cvelistv5 – Published: 2025-12-28 16:19 – Updated: 2026-01-02 20:43

Summary

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)

Severity ?

7.8 (High)


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

CWE

CWE-675 - Multiple Operations on Resource in Single-Operation Context

Assigner

mitre

References

URL

Tags

	https://gpg.fail/memcpy
	https://news.ycombinator.com/item?id=46403200
	https://www.openwall.com/lists/oss-security/2025/…
	https://github.com/gpg/gnupg/commit/115d138ba5993…
	https://github.com/gpg/gnupg/blob/ff30683418695f5…
	https://github.com/gpg/gnupg/compare/gnupg-2.2.50…
	https://media.ccc.de/v/39c3-to-sign-or-not-to-sig…

Impacted products

	Vendor	Product	Version
	GnuPG	GnuPG	Affected: 0 , < 2.2.51 (semver) Affected: 2.3.0 , < 2.4.9 (semver)

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JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-PJ23-86WW-F72P

CVE-2025-68973 (GCVE-0-2025-68973)

Tags

Sightings

Nomenclature