CVE-2011-2721 Integer overflow in n/a
Remote attackers can crash the ClamAV daemon via a crafted email due to an off-by-one error in hash calculations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-2721?
CVE-2011-2721 is a medium-severity vulnerability in Clamav Clamav, published on 5 Aug 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Off-by-one error in the cli_hm_scan function in matcher-hash.c in libclamav in ClamAV before 0.97.2 allows remote attackers to cause a denial of service (daemon crash) via an e-mail message that is not properly handled during certain hash calculations.
Weakness: CWE-189
Which versions are affected by CVE-2011-2721?
It affects 1 product.
Products include Clamav Clamav.
How do I fix CVE-2011-2721?
Upgrade to a fixed version.
Is CVE-2011-2721 being exploited?
There is no known exploitation of CVE-2011-2721 in the wild and no public exploit code.
Other vulnerabilities in Clamav Clamav
Sources
Also known as DEBIAN-CVE-2011-2721, GHSA-x69w-v5wv-rxpx.