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CVE-2013-2053

6.8 · MEDIUM

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 I…

Published Jul 9, 2013xeleranceCWE-119EPSS 2.45%

Overview

CVE-2013-2053 is a medium-severity vulnerability affecting xelerance openswan. It was published on July 9, 2013 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from xelerance. Update openswan to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
xeleranceopenswan0Affected

References

Reflists.opensuse.org/opensuse-security-announce/2013-07/msg00008.htmlRefrhn.redhat.com/errata/RHSA-2013-0827.htmlRefwww.debian.org/security/2014/dsa-2893Refwww.securityfocus.com/bid/59838Refbugzilla.redhat.com/show_bug.cgi?id=960229Reflists.libreswan.org/pipermail/swan-announce/2013/000003.htmlRefwww.openswan.org/news/13Reflists.opensuse.org/opensuse-security-announce/2013-07/msg00008.htmlRefrhn.redhat.com/errata/RHSA-2013-0827.htmlRefwww.debian.org/security/2014/dsa-2893

How CyberStrike helps

Frequently asked questions

What is CVE-2013-2053?

CVE-2013-2053 is a medium-severity vulnerability affecting xelerance openswan. It was published on July 9, 2013 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2013-2053?

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-2053?

Check the references section for vendor advisories and patches from xelerance. Update openswan to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-2053?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-2053 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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