CVE-2013-2053

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-07-09 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

Xelerance Openswan: through 2.6.38; 2.6.01, 2.6.02, 2.6.03, 2.6.04, 2.6.05, 2.6.06 (+31)

References

http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00008.html
http://rhn.redhat.com/errata/RHSA-2013-0827.html
http://www.debian.org/security/2014/dsa-2893
http://www.securityfocus.com/bid/59838
https://bugzilla.redhat.com/show_bug.cgi?id=960229
https://lists.libreswan.org/pipermail/swan-announce/2013/000003.html
https://www.openswan.org/news/13
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00008.html
http://rhn.redhat.com/errata/RHSA-2013-0827.html
http://www.debian.org/security/2014/dsa-2893
http://www.securityfocus.com/bid/59838
https://bugzilla.redhat.com/show_bug.cgi?id=960229

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