acpid: Denial of Service

1. Gentoo Linux Security Advisory

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

Summary: This is a Gentoo Linux Security Advisory

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