SB2019050653 - Stack-based buffer overflow in cracklib (Alpine package)
Published: May 6, 2019
Security Bulletin ID
SB2019050653
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 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.