Articles / Debian: Security update for…

Debian: Security update for Dropbear

Danny Fullerton discovered a use-after-free in the Dropbear SSH daemon, resulting in potential execution of arbitrary code. Exploitation is limited to users, who have been authenticated through public key authentication and for which command restrictions are in place. Updated packages are available from security.debian.org.

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Debian Security Advisory DSA-2456-1                   security@debian.org
http://www.debian.org/security/                        Moritz Muehlenhoff
April 23, 2012                         http://www.debian.org/security/faq
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Package        : dropbear
Vulnerability  : use after free
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2012-0920

Danny Fullerton discovered a use-after-free in the Dropbear SSH daemon,
resulting in potential execution of arbitrary code. Exploitation is
limited to users, who have been authenticated through public key 
authentication and for which command restrictions are in place.

For the stable distribution (squeeze), this problem has been fixed in
version 0.52-5+squeeze1.

For the testing distribution (wheezy), this problem has been fixed in
version 2012.55-1. 

For the unstable distribution (sid), this problem has been fixed in
version 2012.55-1. 

We recommend that you upgrade your dropbear 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@lists.debian.org
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