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Vulnerability record · CVE-2015-0293 · published 19 March 2015

CVE-2015-0293: Openssl improper input validation vulnerability

OOpenssl · Openssl

The SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (s2_lib.c assertion failure and daemon exit) via a crafted CLIENT-MASTER-KEY message.

5.0 CVSS 2.0 Medium EPSS 21% · top 2.5% CWE-20 · Improper input validation
5.0CVSS 2.0 base score
21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
108References
17 Jun 2026Last modified by NVD

Description

The SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a allows remote attackers to cause a denial of service (s2_lib.c assertion failure and daemon exit) via a crafted CLIENT-MASTER-KEY message.

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

Affected products

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

References

LinkTags
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10680
http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152733.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152734.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/152844.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/156823.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157177.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html
http://lists.opensuse.org/opensuse-updates/2015-03/msg00062.html
http://marc.info/?l=bugtraq&m=143213830203296&w=2
http://marc.info/?l=bugtraq&m=143748090628601&w=2
http://marc.info/?l=bugtraq&m=144050155601375&w=2
http://marc.info/?l=bugtraq&m=144050297101809&w=2
http://rhn.redhat.com/errata/RHSA-2015-0715.html
http://rhn.redhat.com/errata/RHSA-2015-0716.html
http://rhn.redhat.com/errata/RHSA-2015-0752.html
http://rhn.redhat.com/errata/RHSA-2015-0800.html
http://support.apple.com/kb/HT204942
http://www.mandriva.com/security/advisories?name=MDVSA-2015:062
http://www.mandriva.com/security/advisories?name=MDVSA-2015:063
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2015-0293), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.