CVE-2012-5521 Denial of service in quagga

What is CVE-2012-5521?

CVE-2012-5521 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 25 Nov 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal

Weakness: CWE-617

Which versions are affected by CVE-2012-5521?

It affects 3 products.

Products include Debian Debian Linux, Quagga Quagga, Redhat Enterprise Linux.

How do I fix CVE-2012-5521?

No fix has been published for CVE-2012-5521 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2012-5521 being exploited?

There is no known exploitation of CVE-2012-5521 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-r8m3-p659-7pmw, UBUNTU-CVE-2012-5521.