CVE-2015-0286
The ASN1_TYPE_cmp function in crypto/asn1/a_type.c 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 does not properly perform boolean-type comparisons, which allows remote attackers to cause a denial of…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 19.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
The ASN1_TYPE_cmp function in crypto/asn1/a_type.c 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 does not properly perform boolean-type comparisons, which allows remote attackers to cause a denial of service (invalid read operation and application crash) via a crafted X.509 certificate to an endpoint that uses the certificate-verification feature.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 19.88% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-17
- Affected
- openssl/openssl
- Source
- secalert@redhat.com
EPSS moved from 19.9% on 1 November 2026 to 19.9% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10680
- http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.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/2015-07/msg00037.html
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
- http://lists.opensuse.org/opensuse-updates/2015-03/msg00062.html
- http://marc.info/?l=bugtraq&m=142841429220765&w=2
- 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=144050254401665&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-2016-2957.html
- http://support.apple.com/kb/HT204942
- http://www.debian.org/security/2015/dsa-3197
- http://www.fortiguard.com/advisory/2015-03-24-openssl-vulnerabilities-march-2015
- 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/cpujul2017-3236622.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.