high
7
CWE
476 362 672
Advisory Published
CVE Published
Updated

CVE-2009-3547: Null Pointer Dereference

First published: Fri Oct 23 2009(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Linux Kernel<=2.6.31.14
Linux Kernel=2.6.32
Linux Kernel=2.6.32-rc1
Linux Kernel=2.6.32-rc2
Linux Kernel=2.6.32-rc3
Linux Kernel=2.6.32-rc4
Linux Kernel=2.6.32-rc5
Novell Linux Desktop=9
openSUSE=11.0
openSUSE=11.2
SUSE Linux Enterprise Desktop=10-sp2
SUSE Linux Enterprise Server=10-sp2
Ubuntu Linux=6.06
Ubuntu Linux=8.04
Ubuntu Linux=8.10
Ubuntu Linux=9.04
Ubuntu Linux=9.10
Fedoraproject Fedora=10
VMware vMA=4.0
VMware ESX=4.0
Ubuntu=6.06
Ubuntu=8.04
Ubuntu=8.10
Ubuntu=9.04
Ubuntu=9.10
Fedora=10
Red Hat MRG Realtime=1.0
redhat enterprise Linux desktop=3.0
redhat enterprise Linux desktop=4.0
redhat enterprise Linux desktop=5.0
redhat enterprise Linux eus=4.8
redhat enterprise Linux eus=5.4
redhat enterprise Linux server=3.0
redhat enterprise Linux server=4.0
redhat enterprise Linux server=5.0
redhat enterprise Linux workstation=3.0
redhat enterprise Linux workstation=4.0
redhat enterprise Linux workstation=5.0

Remedy

http://lkml.org/lkml/2009/10/21/42

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=530490

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2009-3547?

    CVE-2009-3547 is classified as a denial of service and privilege escalation vulnerability that can cause system crashes.

  • How do I fix CVE-2009-3547?

    To fix CVE-2009-3547, update your Linux kernel to version 2.6.32 or later.

  • What systems are affected by CVE-2009-3547?

    CVE-2009-3547 affects various versions of the Linux kernel prior to 2.6.32, including multiple distributions like Ubuntu, Fedora, and openSUSE.

  • What are the potential impacts of CVE-2009-3547?

    Exploiting CVE-2009-3547 can lead to a system crash or allow local users to gain elevated privileges.

  • Is CVE-2009-3547 a remote or local vulnerability?

    CVE-2009-3547 is a local vulnerability that requires authenticated access to exploit.

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