SB2025122901 - Multiple vulnerabilities in GnuPG

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Main Vulnerability Database SB2025122901

SB2025122901 - Multiple vulnerabilities in GnuPG

Published: December 29, 2025

Security Bulletin ID SB2025122901
CSH Severity
High
Patch available
NO
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Numeric truncation error (CVE-ID: CVE-2025-68972)

CWE-ID: CWE-197 - Numeric Truncation Error

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to spoof contents of signed messages.

The vulnerability exists due to software truncates plaintext lines to 20000 characters minus padding when verifying signed data. A remote attacker can inject arbitrary payload into signed messages that still could be verified, allowing message spoofing. 


2) Out-of-bounds write (CVE-ID: CVE-2025-68973)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the armor_filter() function in g10/armor.c. A remote attacker can pass specially crafted input to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References