CVE-2014-2653: Input Validation
First published: Mon Mar 24 2014(Updated: )
The 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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/openssh | <=1:5.5p1-6<=1:6.0p1-4 | 1:6.6p1-1 1:6.0p1-4+deb7u1 1:5.5p1-6+squeeze5 |
| OpenSSH | <=6.6 | |
| OpenSSH | =6.0 | |
| OpenSSH | =6.1 | |
| OpenSSH | =6.2 | |
| OpenSSH | =6.3 | |
| OpenSSH | =6.4 | |
| OpenSSH | =6.5 | |
| debian/openssh | 1:8.4p1-5+deb11u3 1:8.4p1-5+deb11u4 1:9.2p1-2+deb12u5 1:10.0p1-2 |
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Reference Links
- http://bugs.debian.org/742513
- http://www.openssh.com/txt/release-6.6
- https://security-tracker.debian.org/tracker/CVE-2014-2532
- https://security-tracker.debian.org/tracker/CVE-2014-2653
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742513
- http://advisories.mageia.org/MGASA-2014-0166.html
- http://aix.software.ibm.com/aix/efixes/security/openssh_advisory4.asc
- http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134026.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133537.html
- http://marc.info/?l=bugtraq&m=141576985122836&w=2
- http://openwall.com/lists/oss-security/2014/03/26/7
- http://rhn.redhat.com/errata/RHSA-2014-1552.html
- http://rhn.redhat.com/errata/RHSA-2015-0425.html
- http://secunia.com/advisories/59855
- http://www.debian.org/security/2014/dsa-2894
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:068
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:095
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.securityfocus.com/bid/66459
- http://www.ubuntu.com/usn/USN-2164-1
Frequently Asked Questions
What is the severity of CVE-2014-2653?
CVE-2014-2653 is considered a medium severity vulnerability that affects OpenSSH versions 6.6 and earlier.
How do I fix CVE-2014-2653?
To fix CVE-2014-2653, you should upgrade OpenSSH to version 6.7 or later.
What versions of OpenSSH are affected by CVE-2014-2653?
CVE-2014-2653 affects OpenSSH versions 6.6 and earlier, including 6.0 to 6.5.
What is the impact of CVE-2014-2653?
The impact of CVE-2014-2653 allows remote servers to bypass SSHFP DNS RR checking via unacceptable HostCertificates.
Is there a workaround for CVE-2014-2653?
Currently, there are no known effective workarounds for CVE-2014-2653; upgrading is recommended.
- agent/type
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- collector/mitre-cve
- source/MITRE
- collector/debian-bugs
- source/Debian
- alias/CVE-2014-2653
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- agent/last-modified-date
- agent/author
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- agent/event
- collector/security-tracker-debian
- agent/source
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-api
- source/NVD
- package-manager/debian
- vendor/openbsd
- canonical/openssh
- version/openssh/6.6
- version/openssh/6.0
- version/openssh/6.1
- version/openssh/6.2
- version/openssh/6.3
- version/openssh/6.4
- version/openssh/6.5