SB2016120905 - Fedora 25 update for cracklib



SB2016120905 - Fedora 25 update for cracklib

Published: December 9, 2016 Updated: April 24, 2025

Security Bulletin ID SB2016120905
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Stack-based buffer overflow (CVE-ID: CVE-2016-6318)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the FascistGecosUser() function in lib/fascist.c when processing a long GECOS field, involving longbuffer. A remote unauthenticated attacker can trigger a stack-based buffer overflow via an overly long password string and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.