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acpid: Denial of Service


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200905-06 / acpid
Release Date May 24, 2009
Latest Revision May 24, 2009: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
sys-power/acpid < 1.0.10 >= 1.0.10 All supported architectures

Related bugreports: #268079


An error in acpid might allow remote attackers to cause a Denial of Service.

2.  Impact Information


acpid is a daemon for the Advanced Configuration and Power Interface (ACPI).


The acpid daemon allows opening a large number of UNIX sockets without closing them, triggering an infinite loop.


Remote attackers can cause a Denial of Service (CPU consumption and connectivity loss).

3.  Resolution Information


There is no known workaround at this time.


All acpid users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-power/acpid-1.0.10"

4.  References


Page updated May 24, 2009

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