CVE-2015-1789
Description
The X509_cmp_time function in crypto/x509/x509_vfy.c in OpenSSL before 0.9.8zg, 1.0.0 before 1.0.0s, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted length field in ASN1_TIME data, as demonstrated by an attack against a server that supports client authentication with a custom verification callback.
Official description from the CVE record, published by redhat. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org
Key data
EPSS
- Score
- 0.75724 (75.7% probability)
- Percentile
- 99.5%
- Scores of
- Nov 10, 2026
- Model
- v2026.06.15
References
- SUSE-SU-2015:1184 (lists.opensuse.org)vendor-advisory
- SSRT102180 (marc.info)vendor-advisory
- DSA-3287 (debian.org)vendor-advisory
- SUSE-SU-2015:1150 (lists.opensuse.org)vendor-advisory
- kc.mcafee.com/corporate/index?page=content&id=SB10122
- SUSE-SU-2015:1183 (lists.opensuse.org)vendor-advisory
- github.com/openssl/openssl/commit/f48b83b4fb7d6689584cf25f6…
- fortiguard.com/advisory/openssl-vulnerabilities-june-2015
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- HPSBMU03409 (marc.info)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- openssl.org/news/secadv/20150611.txt
- RHSA-2015:1115 (rhn.redhat.com)vendor-advisory
- oracle.com/technetwork/security-advisory/cpujul2016-2881720…
- RHSA-2015:1197 (rhn.redhat.com)vendor-advisory
- oracle.com/technetwork/topics/security/cpuoct2015-2367953.h…
- oracle.com/technetwork/topics/security/cpujan2016-2367955.h…
- SUSE-SU-2015:1182 (lists.opensuse.org)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- SUSE-SU-2015:1143 (lists.opensuse.org)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- oracle.com/technetwork/topics/security/bulletinjul2015-2511…
- openSUSE-SU-2016:0640 (lists.opensuse.org)vendor-advisory
- oracle.com/technetwork/security-advisory/cpuoct2016-2881722…
- 1032564 (securitytracker.com)vdb-entry
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- fortiguard.com/advisory/2015-06-11-fortinet-vulnerability-o…
- FEDORA-2015-10108 (lists.fedoraproject.org)vendor-advisory
- oracle.com/technetwork/security-advisory/cpuoct2017-3236626…
- 20150612 Multiple Vulnerabilities in OpenSSL (June 2015) Affecting Cisco Products (tools.cisco.com)vendor-advisory
- openSUSE-SU-2015:1277 (lists.opensuse.org)vendor-advisory
- SUSE-SU-2015:1181 (lists.opensuse.org)vendor-advisory
- APPLE-SA-2015-08-13-2 (lists.apple.com)vendor-advisory
- USN-2639-1 (ubuntu.com)vendor-advisory
- fortiguard.com/advisory/openssl-vulnerabilities-june-2015
- GLSA-201506-02 (security.gentoo.org)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- oracle.com/technetwork/security-advisory/cpuapr2016v3-29857…
- 91787 (securityfocus.com)vdb-entry
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- FEDORA-2015-10047 (lists.fedoraproject.org)vendor-advisory
- 75156 (securityfocus.com)vdb-entry
- support.apple.com/kb/HT205031
- oracle.com/technetwork/security-advisory/cpujul2017-3236622…
- support.citrix.com/article/CTX216642
- SUSE-SU-2015:1185 (lists.opensuse.org)vendor-advisory
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10694
- openSUSE-SU-2015:1139 (lists.opensuse.org)vendor-advisory
- bto.bluecoat.com/security-advisory/sa98
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10733
- NetBSD-SA2015-008 (ftp.netbsd.org)vendor-advisory
- openssl.org/news/secadv_20150611.txt
- HPSBGN03371 (marc.info)vendor-advisory
- arista.com/en/support/advisories-notices/security-advisorie…
- cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Timeline
- ID reserved
- Record published
- Record last updated
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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:47 UTC. Sources and licenses