Linux Kernel NFSACL Protocol XDR Data Remote Denial of Service Vulnerability

BID:14470

Info

Linux Kernel NFSACL Protocol XDR Data Remote Denial of Service Vulnerability

Bugtraq ID: 14470
Class: Boundary Condition Error
CVE: CVE-2005-2500
Remote: Yes
Local: No
Published: Aug 04 2005 12:00AM
Updated: May 26 2006 11:38PM
Credit: The researcher responsible for discovering this issue is currently unknown. SUSE disclosed this vulnerability.
Vulnerable: S.u.S.E. Linux Professional 9.3 x86_64
S.u.S.E. Linux Professional 9.3
S.u.S.E. Linux Professional 9.2 x86_64
S.u.S.E. Linux Professional 9.2
S.u.S.E. Linux Personal 9.3 x86_64
S.u.S.E. Linux Personal 9.3
Linux kernel 2.6.12 .1
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 2.6.13 -rc6
Linux kernel 2.6.13 -rc1

Discussion

Linux Kernel NFSACL Protocol XDR Data Remote Denial of Service Vulnerability

Linux Kernel is affected by a remote denial-of-service vulnerability when handling XDR data for the nfsacl protocol.

Specific details about this issue were not disclosed. Presumably, an attacker crafts malformed XDR data that contains large string values to corrupt kernel memory.

This may result in a denial-of-service condition.

Exploit / POC

Linux Kernel NFSACL Protocol XDR Data Remote Denial of Service Vulnerability

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

Solution / Fix

Linux Kernel NFSACL Protocol XDR Data Remote Denial of Service Vulnerability

Solution:
Linux Kernel versions 2.6.13-rc1 and later are not affected by this vulnerability. Note that this version of the kernel is a release candidate and may not be stable.

Please see the referenced advisories for more information.


Linux kernel 2.6.5

References

Linux Kernel NFSACL Protocol XDR Data Remote Denial of Service Vulnerability

References:

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