Linux Kernel Subthread Exec Local Denial Of Service Vulnerability

BID:14054

Info

Linux Kernel Subthread Exec Local Denial Of Service Vulnerability

Bugtraq ID: 14054
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2005-1913
Remote: No
Local: Yes
Published: Jun 24 2005 12:00AM
Updated: Mar 12 2007 08:34PM
Credit: The vendor announced this issue.
Vulnerable: Redhat Fedora Core4
Linux kernel 2.6.12 -rc4
Linux kernel 2.6.12 -rc1
Linux kernel 2.6.11 .8
Linux kernel 2.6.11 .7
Linux kernel 2.6.11 .6
Linux kernel 2.6.11 .5
Linux kernel 2.6.11 .11
Linux kernel 2.6.11 -rc4
Linux kernel 2.6.11 -rc3
Linux kernel 2.6.11 -rc2
Linux kernel 2.6.11
+ Redhat Fedora Core4
Linux kernel 2.6.10 rc2
Linux kernel 2.6.10
+ Redhat Fedora Core3
+ Redhat Fedora Core2
+ Trustix Secure Linux 3.0
+ Ubuntu Ubuntu Linux 5.0 4 powerpc
+ Ubuntu Ubuntu Linux 5.0 4 i386
+ Ubuntu Ubuntu Linux 5.0 4 amd64
Linux kernel 2.6.9
Linux kernel 2.6.8 rc3
Linux kernel 2.6.8 rc2
Linux kernel 2.6.8 rc1
+ Ubuntu Ubuntu Linux 4.1 ppc
+ Ubuntu Ubuntu Linux 4.1 ia64
+ Ubuntu Ubuntu Linux 4.1 ia32
Linux kernel 2.6.8
+ S.u.S.E. Linux Personal 9.2 x86_64
+ S.u.S.E. Linux Personal 9.2
+ Ubuntu Ubuntu Linux 4.1 ppc
+ Ubuntu Ubuntu Linux 4.1 ia64
+ Ubuntu Ubuntu Linux 4.1 ia32
Linux kernel 2.6.7 rc1
Linux kernel 2.6.7
Linux kernel 2.6.6 rc1
Linux kernel 2.6.6
Linux kernel 2.6.5
+ S.u.S.E. Linux Personal 9.1 x86_64
+ S.u.S.E. Linux Personal 9.1 x86_64
+ S.u.S.E. Linux Personal 9.1
+ S.u.S.E. Linux Personal 9.1
+ SuSE Linux Enterprise Server 9
Linux kernel 2.6.4
Linux kernel 2.6.3
Linux kernel 2.6.2
Linux kernel 2.6.1 -rc2
Linux kernel 2.6.1 -rc1
Linux kernel 2.6.1
Linux kernel 2.6 .10
Linux kernel 2.6 -test9-CVS
Linux kernel 2.6 -test9
Linux kernel 2.6 -test8
Linux kernel 2.6 -test7
Linux kernel 2.6 -test6
Linux kernel 2.6 -test5
Linux kernel 2.6 -test4
Linux kernel 2.6 -test3
Linux kernel 2.6 -test2
Linux kernel 2.6 -test11
Linux kernel 2.6 -test10
Linux kernel 2.6 -test1
Linux kernel 2.6
Not Vulnerable: Linux kernel 2.6.12 .1

Discussion

Linux Kernel Subthread Exec Local Denial Of Service Vulnerability

The Linux kernel is prone to a local denial-of-service vulnerability that occurs when a call to 'exec()' is made for a subthread that has a timer pending.

A local attacker may exploit this issue to crash the kernel, effectively denying service for legitimate users.

Exploit / POC

Linux Kernel Subthread Exec 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: mailto:[email protected].

Solution / Fix

Linux Kernel Subthread Exec Local Denial Of Service Vulnerability

Solution:
The vendor has released an update:


Linux kernel 2.6.10

Linux kernel 2.6.11 -rc3

Linux kernel 2.6.11

Linux kernel 2.6.11 -rc4

Linux kernel 2.6.11 .6

Linux kernel 2.6.11 .11

Linux kernel 2.6.11 -rc2

Linux kernel 2.6.11 .7

Linux kernel 2.6.11 .8

Linux kernel 2.6.11 .5

Linux kernel 2.6.12 -rc4

Linux kernel 2.6.12 -rc1

Linux kernel 2.6.8

References

Linux Kernel Subthread Exec Local Denial Of Service Vulnerability

References:

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