BugTraq
[SECURITY] [DSA 2894-1] openssh security update Apr 05 2014 03:06PM
Salvatore Bonaccorso (carnil debian org)
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Debian Security Advisory DSA-2894-1 security (at) debian (dot) org [email concealed]
http://www.debian.org/security/ Salvatore Bonaccorso
April 05, 2014 http://www.debian.org/security/faq
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Package : openssh
CVE ID : CVE-2014-2532 CVE-2014-2653
Debian Bug : 742513

Two vulnerabilities were discovered in OpenSSH, an implementation of the
SSH protocol suite. The Common Vulnerabilities and Exposures project
identifies the following problems:

CVE-2014-2532

Jann Horn discovered that OpenSSH incorrectly handled wildcards in
AcceptEnv lines. A remote attacker could use this issue to trick
OpenSSH into accepting any environment variable that contains the
characters before the wildcard character.

CVE-2014-2653

Matthew Vernon reported that if a SSH server offers a
HostCertificate that the ssh client doesn't accept, then the client
doesn't check the DNS for SSHFP records. As a consequence a
malicious server can disable SSHFP-checking by presenting a
certificate.

Note that a host verification prompt is still displayed before
connecting.

For the oldstable distribution (squeeze), these problems have been fixed in
version 1:5.5p1-6+squeeze5.

For the stable distribution (wheezy), these problems have been fixed in
version 1:6.0p1-4+deb7u1.

For the unstable distribution (sid), these problems have been fixed in
version 1:6.6p1-1.

We recommend that you upgrade your openssh packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce (at) lists.debian (dot) org [email concealed]
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