CVE-2002-1420 Integer overflow in n/a

High 7.2 Published 1 Sep 2004 Updated 8 Aug 2024

Local attackers can exploit an integer signedness error in select() to overwrite kernel memory, leading to arbitrary code execution and privilege escalation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2002-1420?

CVE-2002-1420 is a high-severity vulnerability in Openbsd Openbsd, published on 1 Sep 2004. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer signedness error in select() on OpenBSD 3.1 and earlier allows local users to overwrite arbitrary kernel memory via a negative value for the size parameter, which satisfies the boundary check as a signed integer, but is later used as an unsigned integer during a data copying operation.

Which versions are affected by CVE-2002-1420?

It affects 1 product.

Products include Openbsd Openbsd.

How do I fix CVE-2002-1420?

No fix has been published for CVE-2002-1420 yet. Limit exposure of the affected software until one is available.

Is CVE-2002-1420 being exploited?

There is no known exploitation of CVE-2002-1420 in the wild and no public exploit code.

All Openbsd Openbsd vulnerabilities

Sources

Also known as GHSA-63f4-84wq-87g5.