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Debian: Security update for acpid

Multiple vulnerabilities were found in the acpid, the Advanced Configuration and Power Interface event daemon. Vasiliy Kulikov of OpenWall discovered that the socket handling is vulnerable to denial of service. Oliver-Tobias Ripka discovered that incorrect process handling in the Debian-specific powerbtn.sh script could lead to local privilege escalation. Helmut Grohne and Michael Biebl discovered that acpid sets a umask of 0 when executing scripts, which could result in local privilege escalation. Updated packages are available from security.debian.org.

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Debian Security Advisory DSA-2362-1                   security@debian.org
http://www.debian.org/security/                        Moritz Muehlenhoff
December 10, 2011                      http://www.debian.org/security/faq
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Package        : acpid
Vulnerability  : several
Problem type   : remote
Debian-specific: partly
CVE ID         : CVE-2011-1159 CVE-2011-2777 CVE-2011-4578 

Multiple vulnerabilities were found in the acpid, the Advanced
Configuration and Power Interface event daemon:

CVE-2011-1159

   Vasiliy Kulikov of OpenWall discovered that the socket handling
   is vulnerable to denial of service.

CVE-2011-2777

   Oliver-Tobias Ripka discovered that incorrect process handling in
   the Debian-specific powerbtn.sh script could lead to local
   privilege escalation. This issue doesn't affect oldstable. The
   script is only shipped as an example in /usr/share/doc/acpid/examples.
   See /usr/share/doc/acpid/README.Debian for details.

CVE-2011-4578

   Helmut Grohne and Michael Biebl discovered that acpid sets a umask
   of 0 when executing scripts, which could result in local privilege
   escalation.

For the oldstable distribution (lenny), this problem has been fixed in
version 1.0.8-1lenny4.

For the stable distribution (squeeze), this problem has been fixed in
version 1:2.0.7-1squeeze3.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your acpid 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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