Linux Kernel PTrace NULL Pointer Dereference Local Denial Of Service Vulnerability

BID:25801

Info

Linux Kernel PTrace NULL Pointer Dereference Local Denial Of Service Vulnerability

Bugtraq ID: 25801
Class: Design Error
CVE: CVE-2007-3731
Remote: No
Local: Yes
Published: Sep 25 2007 12:00AM
Updated: Feb 29 2008 10:22PM
Credit: Evan Teran discovered this issue.
Vulnerable: Ubuntu Ubuntu Linux 7.04 sparc
Ubuntu Ubuntu Linux 7.04 powerpc
Ubuntu Ubuntu Linux 7.04 i386
Ubuntu Ubuntu Linux 7.04 amd64
Ubuntu Ubuntu Linux 6.10 sparc
Ubuntu Ubuntu Linux 6.10 powerpc
Ubuntu Ubuntu Linux 6.10 i386
Ubuntu Ubuntu Linux 6.10 amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
rPath rPath Linux 1
rPath Appliance Platform Linux Service 1
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux 5 Server
Linux kernel 2.6.21 4
Linux kernel 2.6.21 .7
Linux kernel 2.6.21 .6
Linux kernel 2.6.21 .3
Linux kernel 2.6.21 .2
Linux kernel 2.6.21 .1
Linux kernel 2.6.21 -git8
Linux kernel 2.6.20 .9
Linux kernel 2.6.20 .8
Linux kernel 2.6.20 .5
Linux kernel 2.6.20 .4
Linux kernel 2.6.20 .15
Linux kernel 2.6.20 .1
Linux kernel 2.6.20
Linux kernel 2.6.20
+ Trustix Secure Enterprise Linux 2.0
+ Trustix Secure Linux 2.2
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
Linux kernel 2.6.21-RC6
Linux kernel 2.6.21-RC5
Linux kernel 2.6.21-RC4
Linux kernel 2.6.21-RC3
Linux kernel 2.6.21-RC3
Linux kernel 2.6.20.3
Linux kernel 2.6.20.2
Linux kernel 2.6.20.13
Linux kernel 2.6.20.11
Linux kernel 2.6.20-rc2
Linux kernel 2.6.20-2
Debian Linux 4.0 sparc
Debian Linux 4.0 s/390
Debian Linux 4.0 powerpc
Debian Linux 4.0 mipsel
Debian Linux 4.0 mips
Debian Linux 4.0 m68k
Debian Linux 4.0 ia-64
Debian Linux 4.0 ia-32
Debian Linux 4.0 hppa
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Not Vulnerable:

Discussion

Linux Kernel PTrace NULL Pointer Dereference Local Denial Of Service Vulnerability

The Linux kernel is prone to a local denial-of-service vulnerability.

This issue occurs because of a NULL-pointer dereference in certain 'ptrace' operations.

A local attacker can exploit this issue to crash the affected kernel, denying service to legitimate users.

Exploit / POC

Linux Kernel PTrace NULL Pointer Dereference Local Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

Linux Kernel PTrace NULL Pointer Dereference Local Denial Of Service Vulnerability

Solution:
Updates have been released to address this issue. Please see the references for more information.

References

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