CVE-2009-0798 Denial of service in n/a

Medium 5.0 Published 24 Apr 2009 Updated 7 Aug 2024

Remote attackers can cause denial of service in acpid by opening many UNIX sockets, triggering an infinite loop and CPU exhaustion.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2009-0798?

CVE-2009-0798 is a medium-severity denial of service vulnerability in n/a, published on 24 Apr 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ACPI Event Daemon (acpid) before 1.0.10 allows remote attackers to cause a denial of service (CPU consumption and connectivity loss) by opening a large number of UNIX sockets without closing them, which triggers an infinite loop.

Weakness: CWE-399

Which versions are affected by CVE-2009-0798?

It affects 1 product.

Linux distribution packages (22)

`acpid` Red Hat:enterprise_linux:2.1::as	All versions	`0:1.0.1-3`
`acpid` Red Hat:enterprise_linux:2.1::aw	All versions	`0:1.0.1-3`
`acpid` Red Hat:enterprise_linux:3::as	All versions	`0:1.0.2-4`
`acpid-debuginfo` Red Hat:enterprise_linux:3::as	All versions	`0:1.0.2-4`
`acpid` Red Hat:enterprise_linux:3::desktop	All versions	`0:1.0.2-4`
`acpid-debuginfo` Red Hat:enterprise_linux:3::desktop	All versions	`0:1.0.2-4`
`acpid` Red Hat:enterprise_linux:3::es	All versions	`0:1.0.2-4`
`acpid-debuginfo` Red Hat:enterprise_linux:3::es	All versions	`0:1.0.2-4`
`acpid` Red Hat:enterprise_linux:3::ws	All versions	`0:1.0.2-4`
`acpid-debuginfo` Red Hat:enterprise_linux:3::ws	All versions	`0:1.0.2-4`
`acpid` Red Hat:enterprise_linux:4::as	All versions	`0:1.0.3-2.el4_7.1`
`acpid-debuginfo` Red Hat:enterprise_linux:4::as	All versions	`0:1.0.3-2.el4_7.1`
`acpid` Red Hat:enterprise_linux:4::desktop	All versions	`0:1.0.3-2.el4_7.1`
`acpid-debuginfo` Red Hat:enterprise_linux:4::desktop	All versions	`0:1.0.3-2.el4_7.1`
`acpid` Red Hat:enterprise_linux:4::es	All versions	`0:1.0.3-2.el4_7.1`
`acpid-debuginfo` Red Hat:enterprise_linux:4::es	All versions	`0:1.0.3-2.el4_7.1`
`acpid` Red Hat:enterprise_linux:4::ws	All versions	`0:1.0.3-2.el4_7.1`
`acpid-debuginfo` Red Hat:enterprise_linux:4::ws	All versions	`0:1.0.3-2.el4_7.1`
`acpid` Red Hat:enterprise_linux:5::client	All versions	`0:1.0.4-7.el5_3.1`
`acpid-debuginfo` Red Hat:enterprise_linux:5::client	All versions	`0:1.0.4-7.el5_3.1`
`acpid` Red Hat:enterprise_linux:5::server	All versions	`0:1.0.4-7.el5_3.1`
`acpid-debuginfo` Red Hat:enterprise_linux:5::server	All versions	`0:1.0.4-7.el5_3.1`

Products include Tim Hockin Acpid.

How do I fix CVE-2009-0798?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2009-0798 being exploited?

There is no known exploitation of CVE-2009-0798 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2009-0798, DSA-1786-1, GHSA-6hf5-95q4-x9mh, RHSA-2009:0474.