CVE-2013-2053 Memory corruption in n/a

Medium 6.8 Published 9 Jul 2013 Updated 6 Aug 2024

Remote attackers can cause a denial of service or execute arbitrary code via crafted DNS records in Openswan when Opportunistic Encryption 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-2013-2053?

CVE-2013-2053 is a medium-severity memory corruption vulnerability in n/a, published on 9 Jul 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in the atodn function in Openswan before 2.6.39, when Opportunistic Encryption is enabled and an RSA key is being used, allows remote attackers to cause a denial of service (pluto IKE daemon crash) and possibly execute arbitrary code via crafted DNS TXT records. NOTE: this might be the same vulnerability as CVE-2013-2052 and CVE-2013-2054.

Weakness: CWE-119

Which versions are affected by CVE-2013-2053?

It affects 1 product.

Linux distribution packages (12)

`openswan` Red Hat:enterprise_linux:5::server	All versions	`0:2.6.32-5.el5_9`
`openswan-debuginfo` Red Hat:enterprise_linux:5::server	All versions	`0:2.6.32-5.el5_9`
`openswan-doc` Red Hat:enterprise_linux:5::server	All versions	`0:2.6.32-5.el5_9`
`openswan` Red Hat:enterprise_linux:6::client	All versions	`0:2.6.32-20.el6_4`
`openswan-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`0:2.6.32-20.el6_4`
`openswan-doc` Red Hat:enterprise_linux:6::client	All versions	`0:2.6.32-20.el6_4`
`openswan` Red Hat:enterprise_linux:6::server	All versions	`0:2.6.32-20.el6_4`
`openswan-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`0:2.6.32-20.el6_4`
`openswan-doc` Red Hat:enterprise_linux:6::server	All versions	`0:2.6.32-20.el6_4`
`openswan` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.6.32-20.el6_4`
`openswan-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.6.32-20.el6_4`
`openswan-doc` Red Hat:enterprise_linux:6::workstation	All versions	`0:2.6.32-20.el6_4`

Products include Xelerance Openswan.

How do I fix CVE-2013-2053?

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-2013-2053 being exploited?

There is no known exploitation of CVE-2013-2053 in the wild and no public exploit code.

Sources

Also known as GHSA-xqwx-33f7-54m6, RHSA-2013:0827.