CVE-2011-3581 Memory corruption in n/a

Medium 6.8 Published 4 Nov 2011 Updated 6 Aug 2024

Remote attackers can cause a crash or potentially execute arbitrary code via a malformed DNS Resource Record in the ldns library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2011-3581?

CVE-2011-3581 is a medium-severity memory corruption vulnerability in n/a, published on 4 Nov 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Heap-based buffer overflow in the ldns_rr_new_frm_str_internal function in ldns before 1.6.11 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Resource Record (RR) with an unknown type containing input that is longer than a specified length.

Weakness: CWE-119

Which versions are affected by CVE-2011-3581?

It affects 1 product.

Linux distribution packages (1)

ldns openSUSE:Tumbleweed All versions 1.6.17-5.7

Products include Nlnetlabs Ldns.

How do I fix CVE-2011-3581?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2011-3581 being exploited?

There is no known exploitation of CVE-2011-3581 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-3581, DSA-2353-1, GHSA-jv88-pfrr-vvgm, openSUSE-SU-2024:10556-1.