CVE-2009-3245 Null dereference in n/a

Critical 10.0 Published 5 Mar 2010 Updated 7 Aug 2024

A missing NULL check in OpenSSL's big number expansion functions can lead to a null pointer dereference, potentially causing a denial of service.

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

What is CVE-2009-3245?

CVE-2009-3245 is a critical vulnerability in Openssl Openssl, published on 5 Mar 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OpenSSL before 0.9.8m does not check for a NULL return value from bn_wexpand function calls in (1) crypto/bn/bn_div.c, (2) crypto/bn/bn_gf2m.c, (3) crypto/ec/ec2_smpl.c, and (4) engines/e_ubsec.c, which has unspecified impact and context-dependent attack vectors.

Weakness: CWE-20

Which versions are affected by CVE-2009-3245?

It affects 1 product.

Linux distribution packages (16)

`openssl096b` Red Hat:enterprise_linux:3::as	All versions	`0:0.9.6b-16.50`
`openssl096b-debuginfo` Red Hat:enterprise_linux:3::as	All versions	`0:0.9.6b-16.50`
`openssl096b` Red Hat:enterprise_linux:3::desktop	All versions	`0:0.9.6b-16.50`
`openssl096b-debuginfo` Red Hat:enterprise_linux:3::desktop	All versions	`0:0.9.6b-16.50`
`openssl096b` Red Hat:enterprise_linux:3::es	All versions	`0:0.9.6b-16.50`
`openssl096b-debuginfo` Red Hat:enterprise_linux:3::es	All versions	`0:0.9.6b-16.50`
`openssl096b` Red Hat:enterprise_linux:3::ws	All versions	`0:0.9.6b-16.50`
`openssl096b-debuginfo` Red Hat:enterprise_linux:3::ws	All versions	`0:0.9.6b-16.50`
`openssl096b` Red Hat:enterprise_linux:4::as	All versions	`0:0.9.6b-22.46.el4_8.1`
`openssl096b-debuginfo` Red Hat:enterprise_linux:4::as	All versions	`0:0.9.6b-22.46.el4_8.1`
`openssl096b` Red Hat:enterprise_linux:4::desktop	All versions	`0:0.9.6b-22.46.el4_8.1`
`openssl096b-debuginfo` Red Hat:enterprise_linux:4::desktop	All versions	`0:0.9.6b-22.46.el4_8.1`
`openssl096b` Red Hat:enterprise_linux:4::es	All versions	`0:0.9.6b-22.46.el4_8.1`
`openssl096b-debuginfo` Red Hat:enterprise_linux:4::es	All versions	`0:0.9.6b-22.46.el4_8.1`
`openssl096b` Red Hat:enterprise_linux:4::ws	All versions	`0:0.9.6b-22.46.el4_8.1`
`openssl096b-debuginfo` Red Hat:enterprise_linux:4::ws	All versions	`0:0.9.6b-22.46.el4_8.1`

Products include Openssl Openssl.

How do I fix CVE-2009-3245?

Upgrade to a fixed version.

Is CVE-2009-3245 being exploited?

There is no known exploitation of CVE-2009-3245 in the wild and no public exploit code.

All Openssl Openssl vulnerabilities

Sources

Also known as DEBIAN-CVE-2009-3245, GHSA-c5qh-p8w9-vjq7, RHSA-2010:0173.