SB2014032701 - Input validation error in OpenSSH
Published: March 27, 2014 Updated: August 3, 2020
Security Bulletin ID
SB2014032701
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2014-2653)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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.
Remediation
Install update from vendor's website.
References
- 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
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742513