SB2016090707 - Buffer overflow in cracklib
Published: September 7, 2016 Updated: May 25, 2020
Security Bulletin ID
SB2016090707
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 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.