CVE-2011-3481 Null dereference in n/a

Medium 4.3 Published 14 Sep 2011 Updated 6 Aug 2024

Remote attackers can crash the Cyrus IMAP server via a crafted email header when server-side threading is enabled.

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

What is CVE-2011-3481?

CVE-2011-3481 is a medium-severity vulnerability in n/a, published on 14 Sep 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The index_get_ids function in index.c in imapd in Cyrus IMAP Server before 2.4.11, when server-side threading is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted References header in an e-mail message.

Which versions are affected by CVE-2011-3481?

It affects 1 product.

Products include Cmu Cyrus Imap Server.

How do I fix CVE-2011-3481?

Upgrade to a fixed version.

Is CVE-2011-3481 being exploited?

There is no known exploitation of CVE-2011-3481 in the wild and no public exploit code.

Sources

Also known as DSA-2377-1, GHSA-6h43-3p3w-2945.