SB2025112757 - Gentoo update for librnp
Published: November 27, 2025
Security Bulletin ID
SB2025112757
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of insufficiently random values (CVE-ID: CVE-2025-13470)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to the symmetric session key used for Public-Key Encrypted Session Key (PKESK) packets is left uninitialized except for zeroing, resulting in it always being an all-zero byte array. As a result any data encrypted using public-key encryption in this release can be decrypted trivially by supplying an all-zero session key, fully compromising confidentiality.
Remediation
Install update from vendor's website.