CVE-2013-4122 Null dereference in n/a
Remote attackers can cause a denial of service in Cyrus SASL via a NULL pointer dereference triggered by invalid salts or specific encrypted passwords.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2013-4122?
CVE-2013-4122 is a medium-severity vulnerability in n/a, published on 27 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.
Weakness: CWE-189
Which versions are affected by CVE-2013-4122?
It affects 1 product.
Products include Cmu Cyrus-Sasl.
How do I fix CVE-2013-4122?
Apply the vendor's patch.
Is CVE-2013-4122 being exploited?
There is no known exploitation of CVE-2013-4122 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2013-4122, CLEANSTART-2024-XI23677, DEBIAN-CVE-2013-4122, DSA-3368-1, GHSA-pwpx-m778-r79w.