SB20251226354 - SUSE update for gnutls
Published: December 26, 2025
Security Bulletin ID
SB20251226354
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2025-9820)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the gnutls_pkcs11_token_init() function in lib/pkcs11_write.c when initializing the PKCS#11 token. A local user can trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.