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Vulnerability record · CVE-2013-0166 · published 8 February 2013

CVE-2013-0166: Openssl vulnerability

OOpenssl · Openssl

OpenSSL before 0.9.8y, 1.0.0 before 1.0.0k, and 1.0.1 before 1.0.1d does not properly perform signature verification for OCSP responses, which allows remote OCSP servers to cause a denial of service (NULL pointer dereference and application crash) via an invalid key.

5.0 CVSS 2.0 Medium EPSS 20% · top 2.7% CWE-310 · CWE-310
5.0CVSS 2.0 base score
20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
54References
16 Jun 2026Last modified by NVD

Description

OpenSSL before 0.9.8y, 1.0.0 before 1.0.0k, and 1.0.1 before 1.0.1d does not properly perform signature verification for OCSP responses, which allows remote OCSP servers to cause a denial of service (NULL pointer dereference and application crash) via an invalid key.

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

Affected products

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

References

LinkTags
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=62e4506a7d4cec1c8e1ff687f6b220f6a62a57c7
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=66e8211c0b1347970096e04b18aa52567c325200
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ebc71865f0506a293242bd4aec97cdc7a8ef24b0
http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
http://marc.info/?l=bugtraq&m=136396549913849&w=2
http://marc.info/?l=bugtraq&m=136432043316835&w=2
http://marc.info/?l=bugtraq&m=137545771702053&w=2
http://rhn.redhat.com/errata/RHSA-2013-0587.html
http://rhn.redhat.com/errata/RHSA-2013-0782.html
http://rhn.redhat.com/errata/RHSA-2013-0783.html
http://rhn.redhat.com/errata/RHSA-2013-0833.html
http://secunia.com/advisories/53623
http://secunia.com/advisories/55108
http://secunia.com/advisories/55139
http://support.apple.com/kb/HT5880
http://www.debian.org/security/2013/dsa-2621
http://www.kb.cert.org/vuls/id/737740 US Government Resource
http://www.openssl.org/news/secadv_20130204.txt Vendor Advisory
http://www.splunk.com/view/SP-CAAAHXG
https://bugzilla.redhat.com/show_bug.cgi?id=908052
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18754
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19081
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19360
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19487
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c03883001
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=62e4506a7d4cec1c8e1ff687f6b220f6a62a57c7
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=66e8211c0b1347970096e04b18aa52567c325200
http://git.openssl.org/gitweb/?p=openssl.git%3Ba=commit%3Bh=ebc71865f0506a293242bd4aec97cdc7a8ef24b0
http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
http://marc.info/?l=bugtraq&m=136396549913849&w=2
http://marc.info/?l=bugtraq&m=136432043316835&w=2
http://marc.info/?l=bugtraq&m=137545771702053&w=2
http://rhn.redhat.com/errata/RHSA-2013-0587.html
http://rhn.redhat.com/errata/RHSA-2013-0782.html
http://rhn.redhat.com/errata/RHSA-2013-0783.html
http://rhn.redhat.com/errata/RHSA-2013-0833.html

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

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Source: NIST National Vulnerability Database (record CVE-2013-0166), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.