CVE-2012-2979 Denial of service in nsd3
Remote attackers can crash NSD child processes causing denial of service, requiring an upgrade to the latest version.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-2979?
CVE-2012-2979 is a high-severity denial of service vulnerability in nsd3, published on 1 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FreeBSD NSD before 3.2.13 allows remote attackers to crash a NSD child server process (SIGSEGV) and cause a denial of service in the NSD server.
Weakness: CWE-669
Which versions are affected by CVE-2012-2979?
It affects 1 product.
Products include Freebsd Name Server Daemon.
How do I fix CVE-2012-2979?
Upgrade to a fixed version.
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-2012-2979 being exploited?
There is no known exploitation of CVE-2012-2979 in the wild and no public exploit code.
Sources
Also known as GHSA-83wh-h8h8-hxq9.