SB2012051404 - Buffer overflow in quagga (Alpine package)
Published: May 14, 2012
Security Bulletin ID
SB2012051404
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2012-0255)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
The BGP implementation in bgpd in Quagga before 0.99.20.1 does not properly use message buffers for OPEN messages, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a message associated with a malformed Four-octet AS Number Capability (aka AS4 capability).
Remediation
Install update from vendor's website.