CVE-2014-2653

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Summary

CVECVE-2014-2653
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-03-27 10:55:04 UTC
Updated2026-05-28 18:16:23 UTC
DescriptionThe verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.021480000 probability, percentile 0.845330000 (date 2026-06-02)

Problem Types: CWE-20 | n/a | CWE-20 CWE-20 Improper Input Validation

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
2.0[email protected]Primary5.8AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

AV:N/AC:M/Au:N/C:P/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openbsd Openssh 6.0 All All All
Application Openbsd Openssh 6.1 All All All
Application Openbsd Openssh 6.2 All All All
Application Openbsd Openssh 6.3 All All All
Application Openbsd Openssh 6.4 All All All
Application Openbsd Openssh 6.5 All All All
Application Openbsd Openssh All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Support / Security / Advisories / / MDVSA-2014:068 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
#742513 - If server offers certificate, doesn't fall back to checking SSHFP records (CVE-2014-2653) - Debian Bug report logs af854a3a-2127-422b-91ae-364da2661108 bugs.debian.org Exploit
[SECURITY] Fedora 19 Update: openssh-6.2p2-8.fc19 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
[SECURITY] Fedora 20 Update: openssh-6.4p1-4.fc20 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
OpenSSH Certificate Validation Security Bypass Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Debian -- Security Information -- DSA-2894-1 openssh af854a3a-2127-422b-91ae-364da2661108 www.debian.org
USN-2164-1: OpenSSH vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Support / Security / Advisories / / MDVSA-2015:095 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
oss-security - CVE request: openssh client does not check SSHFP if server offers certificate af854a3a-2127-422b-91ae-364da2661108 openwall.com
Oracle Solaris Third Party Bulletin - October 2015 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com
'[security bulletin] HPSBUX03188 SSRT101487 rev.1 - HP-UX running HP Secure Shell, Remote Denial of S' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
Mageia Advisory: MGASA-2014-0166 - Updated openssh packages fix CVE-2014-2653 af854a3a-2127-422b-91ae-364da2661108 advisories.mageia.org
aix.software.ibm.com/aix/efixes/security/openssh_advisory4.asc af854a3a-2127-422b-91ae-364da2661108 aix.software.ibm.com
Security Advisory SA59855 - SUSE update for openssh - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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