← Vulnerability feed

Vulnerability record · CVE-2013-2053 · published 9 July 2013

CVE-2013-2053: Xelerance openswan memory buffer overflow vulnerability

XXelerance · Openswan

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.

6.8 CVSS 2.0 Medium EPSS 2.4% · top 16.3% CWE-119 · Memory buffer overflow
6.8CVSS 2.0 base score
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 Vendor Advisory
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 Vendor Advisory

Track CVE-2013-2053 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2005-3671Frees wan vulnerabilityThe Internet Key Exchange version 1 (IKEv1) implementation in Openswan 2 (openswan-2) before 2.4.4, and freeswan in SUSE LINUX 9.1 before 2.04_1.5.4-…EPSS 7.5%7.5CVE-2018-15836Xelerance openswan improper verification of cryptographic signature vulnerabilityIn verify_signed_hash() in lib/liboswkeys/signatures.c in Openswan before 2.6.50.1, the RSA implementation does not verify the value of padding strin…EPSS 1.5%7.2CVE-2005-0162Openswan vulnerabilityStack-based buffer overflow in the get_internal_addresses function in the pluto application for Openswan 1.x before 1.0.9, and Openswan 2.x before 2.…EPSS 1.7%6.5CVE-2010-3753Xelerance openswan os command injection vulnerabilityprograms/pluto/xauth.c in the client in Openswan 2.6.26 through 2.6.28 allows remote authenticated gateways to execute arbitrary commands via shell m…EPSS 2.4%6.5CVE-2010-3302Xelerance openswan memory buffer overflow vulnerabilityBuffer overflow in programs/pluto/xauth.c in the client in Openswan 2.6.25 through 2.6.28 might allow remote authenticated gateways to execute arbitr…EPSS 3.9%6.5CVE-2010-3308Xelerance openswan code injection vulnerabilityBuffer overflow in programs/pluto/xauth.c in the client in Openswan 2.6.26 through 2.6.28 might allow remote authenticated gateways to execute arbitr…EPSS 4.0%6.5CVE-2010-3752Xelerance openswan os command injection vulnerabilityprograms/pluto/xauth.c in the client in Openswan 2.6.25 through 2.6.28 allows remote authenticated gateways to execute arbitrary commands via shell m…EPSS 2.5%5.0CVE-2014-2037Xelerance openswan improper input validation vulnerabilityOpenswan 2.6.40 allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon restart) via IKEv2 packets that lack ex…EPSS 2.4%

Source: NIST National Vulnerability Database (record CVE-2013-2053), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.