[USN-1296-1] acpid vulnerabilities
tyhicks at canonical.com
Thu Dec 8 23:32:54 UTC 2011
Ubuntu Security Notice USN-1296-1
December 08, 2011
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
Several security issues were fixed in acpid.
- acpid: Advanced Configuration and Power Interface daemon
Oliver-Tobias Ripka discovered that an ACPI script incorrectly handled power
button events. A local attacker could use this to execute arbitrary code, and
possibly escalate privileges. (CVE-2011-2777)
Helmut Grohne and Michael Biebl discovered that ACPI scripts were executed with
a permissive file mode creation mask (umask). A local attacker could read files
and modify directories created by ACPI scripts that did not set a strict umask.
The problem can be corrected by updating your system to the following
Ubuntu 10.04 LTS:
In general, a standard system update will make all the necessary changes.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 836 bytes
Desc: Digital signature
More information about the ubuntu-security-announce