Input validation error in Quagga - CVE-2013-6051

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Main Vulnerability Database Vulnerabilities #VU33865

Input validation error in Quagga - CVE-2013-6051

Published: December 14, 2013 / Updated: August 4, 2020


Vulnerability identifier: #VU33865
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2013-6051
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The bgp_attr_unknown function in bgp_attr.c in Quagga 0.99.21 does not properly initialize the total variable, which allows remote attackers to cause a denial of service (bgpd crash) via a crafted BGP update.


Affected software

Quagga
Amazon Linux AMI
quagga (Alpine package)

How to mitigate CVE-2013-6051

Install update from vendor's website.

Quagga - update to 0.99.22
quagga (Alpine package) - update to 0.99.21-r4

External References

Related Security Bulletins