CVE-2011-0014 Memory corruption in n/a

Medium 5.0 Published 18 Feb 2011 Updated 6 Aug 2024

Remote attackers can crash applications or read sensitive data via malformed ClientHello messages in OpenSSL when OCSP stapling 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-2011-0014?

CVE-2011-0014 is a medium-severity memory corruption vulnerability in Openssl Openssl, published on 18 Feb 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ssl/t1_lib.c in OpenSSL 0.9.8h through 0.9.8q and 1.0.0 through 1.0.0c allows remote attackers to cause a denial of service (crash), and possibly obtain sensitive information in applications that use OpenSSL, via a malformed ClientHello handshake message that triggers an out-of-bounds memory access, aka "OCSP stapling vulnerability."

Weakness: CWE-399

Which versions are affected by CVE-2011-0014?

It affects 1 product.

Linux distribution packages (20)

`openssl` Red Hat:enterprise_linux:6::client	All versions	`0:1.0.0-10.el6`
`openssl-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:1.0.0-10.el6`
`openssl-devel` Red Hat:enterprise_linux:6::client	All versions	`0:1.0.0-10.el6`
`openssl-perl` Red Hat:enterprise_linux:6::client	All versions	`0:1.0.0-10.el6`
`openssl-static` Red Hat:enterprise_linux:6::client	All versions	`0:1.0.0-10.el6`
`openssl` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.0.0-10.el6`
`openssl-debuginfo` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.0.0-10.el6`
`openssl-devel` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.0.0-10.el6`
`openssl-perl` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.0.0-10.el6`
`openssl-static` Red Hat:enterprise_linux:6::computenode	All versions	`0:1.0.0-10.el6`
`openssl` Red Hat:enterprise_linux:6::server	All versions	`0:1.0.0-10.el6`
`openssl-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:1.0.0-10.el6`
`openssl-devel` Red Hat:enterprise_linux:6::server	All versions	`0:1.0.0-10.el6`
`openssl-perl` Red Hat:enterprise_linux:6::server	All versions	`0:1.0.0-10.el6`
`openssl-static` Red Hat:enterprise_linux:6::server	All versions	`0:1.0.0-10.el6`
`openssl` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.0.0-10.el6`
`openssl-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.0.0-10.el6`
`openssl-devel` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.0.0-10.el6`
`openssl-perl` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.0.0-10.el6`
`openssl-static` Red Hat:enterprise_linux:6::workstation	All versions	`0:1.0.0-10.el6`

Products include Openssl Openssl.

How do I fix CVE-2011-0014?

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-2011-0014 being exploited?

There is no known exploitation of CVE-2011-0014 in the wild and no public exploit code.

All Openssl Openssl vulnerabilities

Sources

Also known as DEBIAN-CVE-2011-0014, DSA-2162-1, GHSA-w2hr-4cx4-4hmj, RHSA-2011:0677.