CVE-2015-0205

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 22.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-01-09 · updated 2026-06-17
Weakness: CWE-310

Description

The ssl3_get_cert_verify function in s3_srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman (DH) certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support.

Affected products

OpenSSL: 1.0.0a, 1.0.0b, 1.0.0c, 1.0.0d, 1.0.0e, 1.0.0f (+19)

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10679
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147938.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148363.html
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html
http://marc.info/?l=bugtraq&m=142721102728110&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=144050205101530&w=2
http://marc.info/?l=bugtraq&m=144050254401665&w=2

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