Articles / Debian: Security update for…

Debian: Security update for tmux

Daniel Danner discovered that tmux, a terminal multiplexer, is not properly dropping group privileges. Due to a patch introduced by Debian, when invoked with the -S option, tmux is not dropping permissions obtained through its setgid installation. Updated packages are available from security.debian.org.

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-2212-1                   security@debian.org
http://www.debian.org/security/                                Nico Golde
April 7, 2011                          http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package        : tmux
Vulnerability  : privilege escalation
Problem type   : local
Debian-specific: yes
CVE ID         : CVE-2011-1496
Debian bug     : 620304

Daniel Danner discovered that tmux, a terminal multiplexer, is not
properly dropping group privileges.  Due to a patch introduced by Debian,
when invoked with the -S option, tmux is not dropping permissions obtained
through its setgid installation.


The oldstable distribution (lenny) is not affected by this problem,
it does not include tmux.

For the stable distribution (squeeze), this problem has been fixed in
version 1.3-2+squeeze1.

For the testing distribution (wheezy), this problem has been fixed in
version 1.4-6.

For the testing distribution (sid), this problem has been fixed in
version 1.4-6.


We recommend that you upgrade your tmux 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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