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CVE-2013-2053

Buffer overflow in the atodn function in Openswan before 2.6.39, when Opportunistic Encryption is...

6.8 MediumFix available

CVE-2013-2053 is a medium vulnerability (CVSS 6.8) in Xelerance Openswan, published July 9, 2013. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.45%, the 84th percentile. Fixed in openswan 0:2.6.32-5.el5_9.

Severity
6.8 MediumCVSS 2.0, NVD
Exploit chance
2.45%EPSS, 84th percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
0:2.6.32-5.el5_9openswan +13 more

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.

Exploit likelihood

2.45%Down 2.7 points since Feb 4, 2022
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openswan
Debian:6.0
From an advisory covering 2 CVEs
before 1:2.6.28+dfsg-5+squeeze2, plus listed versions
1:2.6.28+dfsg-51:2.6.28+dfsg-5+squeeze11:2.6.28+dfsg-5+squeeze1~bpo50+1
1:2.6.28+dfsg-5+squeeze2
openswan
Debian:7
From an advisory covering 2 CVEs
before 1:2.6.37-3+deb7u1, plus listed versions
1:2.6.37-3
1:2.6.37-3+deb7u1
openswan
Red Hat:enterprise_linux:5::server
before 0:2.6.32-5.el5_9
0:2.6.32-5.el5_9
openswan-debuginfo
Red Hat:enterprise_linux:5::server
before 0:2.6.32-5.el5_9
0:2.6.32-5.el5_9
openswan-doc
Red Hat:enterprise_linux:5::server
before 0:2.6.32-5.el5_9
0:2.6.32-5.el5_9
openswan
Red Hat:enterprise_linux:6::client
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
openswan-debuginfo
Red Hat:enterprise_linux:6::client
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
openswan-doc
Red Hat:enterprise_linux:6::client
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
openswan
Red Hat:enterprise_linux:6::server
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
openswan-debuginfo
Red Hat:enterprise_linux:6::server
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
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Affected packages
PackageAffectedFixed
openswan-doc
Red Hat:enterprise_linux:6::server
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
openswan
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
openswan-debuginfo
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4
openswan-doc
Red Hat:enterprise_linux:6::workstation
before 0:2.6.32-20.el6_4
0:2.6.32-20.el6_4

What each source reports

NVD Score used6.8

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.

Record
CVE-2013-2053
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE ListNo score

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.

Record
CVE-2013-2053
Updated
2026-11-02
EUVDEUVD-2013-2035No score

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.

Record
EUVD-2013-2035
Updated
2026-11-03
GitHub AdvisoriesGHSA-xqwx-33f7-54m6No score

Buffer overflow in the atodn function in Openswan before 2.6.39, when Opportunistic Encryption is...

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.

Record
GHSA-xqwx-33f7-54m6
Weakness
CWE-119
Updated
2026-11-02

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

References

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