CVE-2002-1221 Null dereference in n/a
Remote attackers can crash the BIND DNS server by sending SIG records with invalid expiry times, causing a null pointer dereference.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2002-1221?
CVE-2002-1221 is a medium-severity vulnerability in Freebsd Freebsd, published on 1 Sep 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
BIND 8.x through 8.3.3 allows remote attackers to cause a denial of service (crash) via SIG RR elements with invalid expiry times, which are removed from the internal BIND database and later cause a null dereference.
Which versions are affected by CVE-2002-1221?
It affects 3 products.
Products include Freebsd Freebsd, Isc Bind, Openbsd Openbsd.
How do I fix CVE-2002-1221?
Upgrade to a fixed version.
Is CVE-2002-1221 being exploited?
There is no known exploitation of CVE-2002-1221 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-6qgf-gfj4-gj5c.