CVE-2009-3547 Race condition in n/a

High 7.0 Published Updated

Local attackers can exploit race conditions in pipe handling to crash the system or gain elevated privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2009-3547?

CVE-2009-3547 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 4 Nov 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service (NULL pointer dereference and system crash) or gain privileges by attempting to open an anonymous pipe via a /proc/*/fd/ pathname.

Weakness: CWE-672, CWE-476, CWE-362

Which versions are affected by CVE-2009-3547?

It affects 14 products.

Linux distribution packages (40)
kernel Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-debuginfo Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-devel Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-doc Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-hugemem Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-hugemem-devel Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-largesmp Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-largesmp-devel Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-smp Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-smp-devel Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-xenU Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel-xenU-devel Red Hat:enterprise_linux:4::asAll versions0:2.6.9-89.0.16.EL
kernel Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-debuginfo Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-devel Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-doc Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-hugemem Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-hugemem-devel Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-largesmp Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-largesmp-devel Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-smp Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-smp-devel Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-xenU Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel-xenU-devel Red Hat:enterprise_linux:4::desktopAll versions0:2.6.9-89.0.16.EL
kernel Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-debuginfo Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-devel Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-doc Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-hugemem Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-hugemem-devel Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-largesmp Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-largesmp-devel Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-smp Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-smp-devel Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-xenU Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel-xenU-devel Red Hat:enterprise_linux:4::esAll versions0:2.6.9-89.0.16.EL
kernel Red Hat:enterprise_linux:4::wsAll versions0:2.6.9-89.0.16.EL
kernel-debuginfo Red Hat:enterprise_linux:4::wsAll versions0:2.6.9-89.0.16.EL
kernel-devel Red Hat:enterprise_linux:4::wsAll versions0:2.6.9-89.0.16.EL
kernel-doc Red Hat:enterprise_linux:4::wsAll versions0:2.6.9-89.0.16.EL

Products include Canonical Ubuntu Linux, Fedoraproject Fedora, Linux kernel, Novell Linux Desktop, Opensuse Opensuse, Redhat Enterprise Linux Desktop and 8 more.

How do I fix CVE-2009-3547?

Apply the vendor's patch.

Is CVE-2009-3547 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-3547 exists.

Public exploit code: 5 Exploit-DB entries.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-qf89-p9hj-7h7g, RHSA-2009:1541, RHSA-2009:1588.

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