Vulnerability identifier: #VU44160
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
Quagga
Server applications /
Other server solutions
Vendor: quagga.net
Description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Buffer overflow in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 allows remote attackers to cause a denial of service (daemon crash) via a Link State Update (aka LS Update) packet containing a network-LSA link-state advertisement for which the data-structure length is smaller than the value in the Length header field.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Quagga: 0.99.1 - 0.99.19
External links
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078794.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078910.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-April/078926.html
http://rhn.redhat.com/errata/RHSA-2012-1258.html
http://rhn.redhat.com/errata/RHSA-2012-1259.html
http://secunia.com/advisories/48949
http://www.debian.org/security/2012/dsa-2459
http://www.kb.cert.org/vuls/id/551715
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.