GnuPG up to 2.4.8 g10/armor.c armor_filter multiple operations on resource in single-operation context

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in GnuPG up to 2.4.8. It has been classified as problematic. The impacted element is the function armor_filter of the file g10/armor.c. The manipulation leads to multiple operations on resource in single-operation context. This vulnerability is traded as CVE-2025-68973. An attack has to be approached locally. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in GnuPG up to 2.4.8. This issue affects the function armor_filter of the file g10/armor.c. The manipulation with an unknown input leads to a multiple operations on resource in single-operation context vulnerability. Using CWE to declare the problem leads to CWE-675. The product performs the same operation on a resource two or more times, when the operation should only be applied once. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.)

The identification of this vulnerability is CVE-2025-68973 since 12/28/2025. The exploitation is known to be difficult. An attack has to be approached locally. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 280113 (Linux Distros Unpatched Vulnerability : CVE-2025-68973), which helps to determine the existence of the flaw in a target environment.

Applying the patch 115d138ba599328005c5321c0ef9f00355838ca9 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (280113), EUVD (EUVD-2025-205519) and CERT Bund (WID-SEC-2025-2928). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Open Source GnuPG
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔒

CNA Base Score: 7.8
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Multiple operations on resource in single-operation context
CWE: CWE-675
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 280113
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-68973

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 115d138ba599328005c5321c0ef9f00355838ca9

Timelineinfo

12/28/2025 Advisory disclosed
12/28/2025 +0 days CVE reserved
12/28/2025 +0 days VulDB entry created
01/25/2026 +28 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2025-68973 (🔒)
GCVE (CVE): GCVE-0-2025-68973
GCVE (VulDB): GCVE-100-338609
EUVD: 🔒
CERT Bund: WID-SEC-2025-2928 - GnuPG: Mehrere Schwachstellen

Entryinfo

Created: 12/28/2025 19:02
Updated: 01/25/2026 09:42
Changes: 12/28/2025 19:02 (63), 12/28/2025 20:30 (1), 12/29/2025 07:31 (2), 12/29/2025 21:08 (1), 12/31/2025 06:16 (1), 01/03/2026 10:33 (7), 01/05/2026 09:29 (2), 01/07/2026 15:55 (11), 01/10/2026 00:20 (1), 01/15/2026 19:42 (1), 01/20/2026 11:40 (1), 01/25/2026 09:42 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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