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Red Hat: RHSA-2009-0474-01 Moderate: acpid DoS Attack Mitigation

red hat
Calendar Grey May 7, 2009
Dist Redhat Esm H88
The PostgreSQL database system has been issued a critical security patch that resolves a buffer overflow vulnerability. Users are strongly recommended to apply the update.
An updated acpid package that fixes one security issue is now available for Red Hat Enterprise Linux 2.1, 3, 4, and 5

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

acpid is a daemon that dispatches ACPI (Advanced Configuration and Power Interface) events to user-space programs.
Anthony de Almeida Lopes of Outpost24 AB reported a denial of service flaw in the acpid daemon's error handling. If an attacker could exhaust the sockets open to acpid, the daemon would enter an infinite loop, consuming most CPU resources and preventing acpid from communicating with legitimate processes. (CVE-2009-0798)
Users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory security update Red Hat DoS issue moderate severity package fix acpid

References

https://www.cve.org/CVERecord?id=CVE-2009-0798 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 :
Source:
ia64: acpid-1.0.1-3.ia64.rpm
Red Hat Linux Advanced Workstation 2.1:
Source:
ia64: acpid-1.0.1-3.ia64.rpm
Red Hat Enterprise Linux AS version 3:
Source:
ia64: acpid-1.0.2-4.ia64.rpm acpid-debuginfo-1.0.2-4.ia64.rpm
x86_64: acpid-1.0.2-4.x86_64.rpm acpid-debuginfo-1.0.2-4.x86_64.rpm
Red Hat Desktop version 3:
Source:
x86_64: acpid-1.0.2-4.x86_64.rpm acpid-debuginfo-1.0.2-4.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
Source:
ia64: acpid-1.0.2-4.ia64.rpm acpid-debuginfo-1.0.2-4.ia64.rpm
x86_64: acpid-1.0.2-4.x86_64.rpm acpid-debuginfo-1.0.2-4.x86_64.rpm
Red Hat Enterprise Linux WS version 3:
Source:
ia64: acpid-1.0.2-4.ia64.rpm acpid-debuginfo-1.0.2-4.ia64.rpm
x86_64: acpid-1.0.2-4.x86_64.rpm acpid-debuginfo-1.0.2-4.x86_64.rpm
Red Hat Enterprise Linux AS version 4:
Source:
i386: acpid-1.0.3-2.el4_7.1.i386.rpm acpid-debuginfo-1.0.3-2.el4_7.1.i386.rpm
ia64: acpid-1.0.3-2.el4_7.1.ia64.rpm acpid-debuginfo-1.0.3-2.el4_7.1.ia64.rpm
x86_64: acpid-1.0.3-2.el4_7.1.x86_64.rpm acpid-debuginfo-1.0.3-2.el4_7.1.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386: acpid-1.0.3-2.el4_7.1.i386.rpm acpid-debuginfo-1.0.3-2.el4_7.1.i386.rpm
x86_64: acpid-1.0.3-2.el4_7.1.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2009:0474-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:0474.html
Issue date: 2009-05-07

Topic

An updated acpid package that fixes one security issue is now availablefor Red Hat Enterprise Linux 2.1, 3, 4, and 5.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory security update Red Hat DoS issue moderate severity package fix acpid

Relevant Releases Architectures

Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - ia64

Red Hat Linux Advanced Workstation 2.1 - ia64

Red Hat Enterprise Linux AS version 3 - ia64, x86_64

Red Hat Desktop version 3 - x86_64

Red Hat Enterprise Linux ES version 3 - ia64, x86_64

Red Hat Enterprise Linux WS version 3 - ia64, x86_64

Red Hat Enterprise Linux AS version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, x86_64

Bugs Fixed

494443 - CVE-2009-0798 acpid: too many open files DoS

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