CVE-2009-0949 Null dereference in n/a

High 7.5 Published 9 Jun 2009 Updated 7 Aug 2024

Remote attackers can crash the CUPS daemon via a crafted IPP request, causing denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2009-0949?

CVE-2009-0949 is a high-severity vulnerability in Apple Cups, published on 9 Jun 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The ippReadIO function in cups/ipp.c in cupsd in CUPS before 1.3.10 does not properly initialize memory for IPP request packets, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a scheduler request with two consecutive IPP_TAG_UNSUPPORTED tags.

Weakness: CWE-908

Which versions are affected by CVE-2009-0949?

It affects 7 products.

Linux distribution packages (12)

`cups` Red Hat:enterprise_linux:5::client	All versions	`1:1.3.7-8.el5_3.6`
`cups-debuginfo` Red Hat:enterprise_linux:5::client	All versions	`1:1.3.7-8.el5_3.6`
`cups-libs` Red Hat:enterprise_linux:5::client	All versions	`1:1.3.7-8.el5_3.6`
`cups-lpd` Red Hat:enterprise_linux:5::client	All versions	`1:1.3.7-8.el5_3.6`
`cups` Red Hat:enterprise_linux:5::client_workstation	All versions	`1:1.3.7-8.el5_3.6`
`cups-debuginfo` Red Hat:enterprise_linux:5::client_workstation	All versions	`1:1.3.7-8.el5_3.6`
`cups-devel` Red Hat:enterprise_linux:5::client_workstation	All versions	`1:1.3.7-8.el5_3.6`
`cups` Red Hat:enterprise_linux:5::server	All versions	`1:1.3.7-8.el5_3.6`
`cups-debuginfo` Red Hat:enterprise_linux:5::server	All versions	`1:1.3.7-8.el5_3.6`
`cups-devel` Red Hat:enterprise_linux:5::server	All versions	`1:1.3.7-8.el5_3.6`
`cups-libs` Red Hat:enterprise_linux:5::server	All versions	`1:1.3.7-8.el5_3.6`
`cups-lpd` Red Hat:enterprise_linux:5::server	All versions	`1:1.3.7-8.el5_3.6`

Products include Apple Cups, Apple Mac Os X, Apple Mac Os X Server, Canonical Ubuntu Linux, Debian Debian Linux, Opensuse Opensuse and 1 more.

How do I fix CVE-2009-0949?

Upgrade to a fixed version.

Is CVE-2009-0949 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0949 exists.

Public exploit code: 1 Exploit-DB entry.

All Apple Cups vulnerabilities

Sources

Also known as DEBIAN-CVE-2009-0949, DSA-1811-1, GHSA-m37g-v637-95q3, RHSA-2009:1082.