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    CVE-2015-0205

    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.

    Published:Jan 8, 2015
    Last Modified:Apr 12, 2025
    EPS:Jan 9, 2015
    EPSS Score:0.13876
    CVSS Score:5

    Affected Products

    Vendor
    Openssl
    Product
    Openssl
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://github.com/saurabh2088/OpenSSL_1_0_1g_CVE-2015-0205

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-75803 (CVSS 9.1) — Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without ve…
    CVE-2026-63075 (CVSS 7.5) — Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets whi…
    CVE-2026-63072 (CVSS 7.5) — Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key s…
    CVE-2026-54874 (CVSS 7.5) — Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to b…
    CVE-2026-14457 (CVSS 7.5) — Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the p…
    CVE-2026-63076 (CVSS 7.5) — Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parame…
    CVE-2026-63074 (CVSS 5.9) — Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) s…
    CVE-2026-63073 (CVSS 9.8) — Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directl…
    CVE-2026-18798 (CVSS 7.5) — Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for i…
    CVE-2026-14456 (CVSS 7.5) — Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unkn…

    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
    http://marc.info/?l=bugtraq&m=144050297101809&w=2
    http://rhn.redhat.com/errata/RHSA-2015-0066.html
    http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150310-ssl
    http://www.debian.org/security/2015/dsa-3125
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:019
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:062
    http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
    http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
    http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
    http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
    http://www.securityfocus.com/bid/71941
    http://www.securityfocus.com/bid/91787
    http://www.securitytracker.com/id/1033378
    https://bto.bluecoat.com/security-advisory/sa88
    https://exchange.xforce.ibmcloud.com/vulnerabilities/99708
    https://github.com/openssl/openssl/commit/1421e0c584ae9120ca1b88098f13d6d2e90b83a3
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
    https://kc.mcafee.com/corporate/index?page=content&id=SB10102
    https://kc.mcafee.com/corporate/index?page=content&id=SB10108
    https://support.citrix.com/article/CTX216642
    https://www.openssl.org/news/secadv_20150108.txt
    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
    http://marc.info/?l=bugtraq&m=144050297101809&w=2
    http://rhn.redhat.com/errata/RHSA-2015-0066.html
    http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150310-ssl
    http://www.debian.org/security/2015/dsa-3125
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:019
    http://www.mandriva.com/security/advisories?name=MDVSA-2015:062
    http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
    http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
    http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
    http://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
    http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
    http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
    http://www.securityfocus.com/bid/71941
    http://www.securityfocus.com/bid/91787
    http://www.securitytracker.com/id/1033378
    https://bto.bluecoat.com/security-advisory/sa88
    https://exchange.xforce.ibmcloud.com/vulnerabilities/99708
    https://github.com/openssl/openssl/commit/1421e0c584ae9120ca1b88098f13d6d2e90b83a3
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
    https://kc.mcafee.com/corporate/index?page=content&id=SB10102
    https://kc.mcafee.com/corporate/index?page=content&id=SB10108
    https://support.citrix.com/article/CTX216642
    https://www.openssl.org/news/secadv_20150108.txt

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High