--- title: "CVE-2015-1789: The X509_cmp_time function… | CubePath" 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…" language: en source: https://cubepath.com/security/cve/CVE-2015-1789 --- # CVE-2015-1789: The X509_cmp_time function… | CubePath ## 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](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2015-1789) ## Key data ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.75724 (75.7% probability) Percentile 99.5% Scores of Nov 10, 2026 Model v2026.06.15 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [SUSE-SU-2015:1184](http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html) (lists.opensuse.org) vendor-advisory - [SSRT102180](http://marc.info/?l=bugtraq&m=143880121627664&w=2) (marc.info) vendor-advisory - [DSA-3287](http://www.debian.org/security/2015/dsa-3287) (debian.org) vendor-advisory - [SUSE-SU-2015:1150](http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html) (lists.opensuse.org) vendor-advisory - [kc.mcafee.com/corporate/index?page=content&id=SB10122](https://kc.mcafee.com/corporate/index?page=content&id=SB10122) - [SUSE-SU-2015:1183](http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00005.html) (lists.opensuse.org) vendor-advisory - [github.com/openssl/openssl/commit/f48b83b4fb7d6689584cf25f6…](https://github.com/openssl/openssl/commit/f48b83b4fb7d6689584cf25f61ca63a4891f5b11) - [fortiguard.com/advisory/openssl-vulnerabilities-june-2015](http://fortiguard.com/advisory/openssl-vulnerabilities-june-2015) - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05157667) - [HPSBMU03409](http://marc.info/?l=bugtraq&m=144050155601375&w=2) (marc.info) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05353965) - [openssl.org/news/secadv/20150611.txt](https://openssl.org/news/secadv/20150611.txt) - [RHSA-2015:1115](http://rhn.redhat.com/errata/RHSA-2015-1115.html) (rhn.redhat.com) vendor-advisory - [oracle.com/technetwork/security-advisory/cpujul2016-2881720…](http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html) - [RHSA-2015:1197](http://rhn.redhat.com/errata/RHSA-2015-1197.html) (rhn.redhat.com) vendor-advisory - [oracle.com/technetwork/topics/security/cpuoct2015-2367953.h…](http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html) - [oracle.com/technetwork/topics/security/cpujan2016-2367955.h…](http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html) - [SUSE-SU-2015:1182](http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html) (lists.opensuse.org) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05150888) - [SUSE-SU-2015:1143](http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html) (lists.opensuse.org) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05184351) - [oracle.com/technetwork/topics/security/bulletinjul2015-2511…](http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html) - [openSUSE-SU-2016:0640](http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html) (lists.opensuse.org) vendor-advisory - [oracle.com/technetwork/security-advisory/cpuoct2016-2881722…](http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html) - [1032564](http://www.securitytracker.com/id/1032564) (securitytracker.com) vdb-entry - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05158380) - [fortiguard.com/advisory/2015-06-11-fortinet-vulnerability-o…](http://www.fortiguard.com/advisory/2015-06-11-fortinet-vulnerability-openssl-vulnerabilities-june-2015) - [FEDORA-2015-10108](http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160647.html) (lists.fedoraproject.org) vendor-advisory - [oracle.com/technetwork/security-advisory/cpuoct2017-3236626…](http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html) - [20150612 Multiple Vulnerabilities in OpenSSL (June 2015) Affecting Cisco Products](http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150612-openssl) (tools.cisco.com) vendor-advisory - [openSUSE-SU-2015:1277](http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html) (lists.opensuse.org) vendor-advisory - [SUSE-SU-2015:1181](http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00003.html) (lists.opensuse.org) vendor-advisory - [APPLE-SA-2015-08-13-2](http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html) (lists.apple.com) vendor-advisory - [USN-2639-1](http://www.ubuntu.com/usn/USN-2639-1) (ubuntu.com) vendor-advisory - [fortiguard.com/advisory/openssl-vulnerabilities-june-2015](http://www.fortiguard.com/advisory/openssl-vulnerabilities-june-2015) - [GLSA-201506-02](https://security.gentoo.org/glsa/201506-02) (security.gentoo.org) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05131044) - [oracle.com/technetwork/security-advisory/cpuapr2016v3-29857…](http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html) - [91787](http://www.securityfocus.com/bid/91787) (securityfocus.com) vdb-entry - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05045763) - [FEDORA-2015-10047](http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160436.html) (lists.fedoraproject.org) vendor-advisory - [75156](http://www.securityfocus.com/bid/75156) (securityfocus.com) vdb-entry - [support.apple.com/kb/HT205031](https://support.apple.com/kb/HT205031) - [oracle.com/technetwork/security-advisory/cpujul2017-3236622…](http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html) - [support.citrix.com/article/CTX216642](https://support.citrix.com/article/CTX216642) - [SUSE-SU-2015:1185](http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00007.html) (lists.opensuse.org) vendor-advisory - [kb.juniper.net/InfoCenter/index?page=content&id=JSA10694](http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694) - [openSUSE-SU-2015:1139](http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html) (lists.opensuse.org) vendor-advisory - [bto.bluecoat.com/security-advisory/sa98](https://bto.bluecoat.com/security-advisory/sa98) - [kb.juniper.net/InfoCenter/index?page=content&id=JSA10733](http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10733) - [NetBSD-SA2015-008](http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc) (ftp.netbsd.org) vendor-advisory - [openssl.org/news/secadv\_20150611.txt](https://www.openssl.org/news/secadv%5F20150611.txt) - [HPSBGN03371](http://marc.info/?l=bugtraq&m=143654156615516&w=2) (marc.info) vendor-advisory - [arista.com/en/support/advisories-notices/security-advisorie…](https://www.arista.com/en/support/advisories-notices/security-advisories/1144-security-advisory-11) - [cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf](https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf) ## Timeline 1. ID reserved Feb 17, 2015 2. Record published Jun 12, 2015 3. Record last updated Aug 6, 2024 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) 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, 19:59 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)