CVE-2012-0249: Buffer Overflow
Buffer overflow in the ospflsupdlistlsa function in ospfpacket.c in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a Link State Update (aka LS Update) packet that is smaller than the length specified in its header.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Quagga ospfdto a version that resolves this vulnerability.Fixed in 0.99.20.1
Event History
Frequently Asked Questions
What is the severity of CVE-2012-0249?
CVE-2012-0249 has a severity level that indicates it can cause denial of service by exploiting a buffer overflow.
How do I fix CVE-2012-0249?
To fix CVE-2012-0249, upgrade Quagga to version 0.99.20.1 or later.
Which versions of Quagga are affected by CVE-2012-0249?
CVE-2012-0249 affects Quagga versions up to 0.99.20 inclusive and several earlier versions.
Can CVE-2012-0249 be exploited remotely?
Yes, CVE-2012-0249 can be exploited remotely through specially crafted Link State Update packets.
What are the consequences of an exploit leveraging CVE-2012-0249?
Exploiting CVE-2012-0249 can lead to assertion failures and the exit of the ospfd daemon, causing service disruption.