CVE-2009-2632 Memory corruption in n/a

Medium 4.4 Published Updated

Local attackers can execute arbitrary code and access messages via crafted SIEVE scripts due to buffer overflow in Cyrus IMAP and Dovecot.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2009-2632?

CVE-2009-2632 is a medium-severity memory corruption vulnerability in n/a, published on 8 Sep 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer overflow in the SIEVE script component (sieve/script.c), as used in cyrus-imapd in Cyrus IMAP Server 2.2.13 and 2.3.14, and Dovecot 1.0 before 1.0.4 and 1.1 before 1.1.7, allows local users to execute arbitrary code and read or modify arbitrary messages via a crafted SIEVE script, related to the incorrect use of the sizeof operator for determining buffer length, combined with an integer signedness error.

Weakness: CWE-119

Which versions are affected by CVE-2009-2632?

It affects 1 product.

Products include Cmu Cyrus Imap Server.

How do I fix CVE-2009-2632?

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-2009-2632 being exploited?

There is no known exploitation of CVE-2009-2632 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2009-2632, DSA-1881-1, GHSA-f78m-3xxg-82w8.

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