Linux Kernel Time_Out_Leases PrintK Local Denial of Service Vulnerability

BID:15627

Info

Linux Kernel Time_Out_Leases PrintK Local Denial of Service Vulnerability

Bugtraq ID: 15627
Class: Design Error
CVE: CVE-2005-3857
Remote: No
Local: Yes
Published: Nov 29 2005 12:00AM
Updated: Jan 09 2007 06:22PM
Credit: This issue was reported to the vendor by Avi Kivity.
Vulnerable: Ubuntu Ubuntu Linux 5.10 powerpc
Ubuntu Ubuntu Linux 5.10 i386
Ubuntu Ubuntu Linux 5.10 amd64
Ubuntu Ubuntu Linux 5.0 4 powerpc
Ubuntu Ubuntu Linux 5.0 4 i386
Ubuntu Ubuntu Linux 5.0 4 amd64
Ubuntu Ubuntu Linux 4.1 ppc
Ubuntu Ubuntu Linux 4.1 ia64
Ubuntu Ubuntu Linux 4.1 ia32
Trustix Secure Linux 3.0
Trustix Secure Linux 2.2
Trustix Secure Enterprise Linux 2.0
SGI ProPack 3.0 SP6
SGI ProPack 3.0 SP5
SGI ProPack 3.0 SP4
SGI ProPack 3.0 SP3
SGI ProPack 3.0 SP2
SGI ProPack 3.0 SP1
SGI ProPack 3.0
Redhat Fedora Core4
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux WS 3
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux ES 3
Redhat Enterprise Linux AS 4
Redhat Enterprise Linux AS 3
Redhat Desktop 4.0
Redhat Desktop 3.0
MandrakeSoft Multi Network Firewall 2.0
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
Linux kernel 2.6.15 -rc2
Linux kernel 2.6.15 -rc1
Linux kernel 2.6.14 .2
Linux kernel 2.6.14 .1
Linux kernel 2.6.14 -rc4
Linux kernel 2.6.14 -rc3
Linux kernel 2.6.14 -rc2
Linux kernel 2.6.14 -rc1
Linux kernel 2.6.14
Linux kernel 2.6.13 .4
Linux kernel 2.6.13 .3
Linux kernel 2.6.13 .2
Linux kernel 2.6.13 .1
Linux kernel 2.6.13 -rc7
Linux kernel 2.6.13 -rc6
Linux kernel 2.6.13 -rc4
Linux kernel 2.6.13 -rc1
Linux kernel 2.6.13
Linux kernel 2.6.12 .5
Linux kernel 2.6.12 .4
Linux kernel 2.6.12 .3
Linux kernel 2.6.12 .2
Linux kernel 2.6.12 .1
Linux kernel 2.6.12 -rc5
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 .12
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
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
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
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Not Vulnerable: Linux kernel 2.6.15 -rc3
Linux kernel 2.6.14 .3

Discussion

Linux Kernel Time_Out_Leases PrintK Local Denial of Service Vulnerability

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

Local attackers may trigger this issue by obtaining numerous file-lock leases, which will consume excessive kernel log memory. Once the leases timeout, the event will be logged, and kernel memory will be consumed.

This issue allows local attackers to consume excessive kernel memory, eventually leading to an out-of-memory condition and a denial of service for legitimate users.

Kernel versions prior to 2.6.15-rc3 are vulnerable to this issue.

Exploit / POC

Linux Kernel Time_Out_Leases PrintK Local Denial of Service Vulnerability

An exploit by Avi Kivity is available:

Solution / Fix

Linux Kernel Time_Out_Leases PrintK Local Denial of Service Vulnerability

Solution:
Please see the referenced vendor advisories for information on obtaining and applying the appropriate updates.

Linux kernel version 2.6.15-rc3 has been released to address this issue.


Linux kernel 2.6 -test6

Linux kernel 2.6 -test4

Linux kernel 2.6 -test2

Linux kernel 2.6 -test11

Linux kernel 2.6 -test9-CVS

Linux kernel 2.6

Linux kernel 2.6 -test3

Linux kernel 2.6 .10

Linux kernel 2.6 -test5

Linux kernel 2.6 -test1

Linux kernel 2.6 -test7

Linux kernel 2.6 -test9

Linux kernel 2.6 -test8

Linux kernel 2.6.1 -rc1

Linux kernel 2.6.1 -rc2

Linux kernel 2.6.1

Linux kernel 2.6.10 rc2

Linux kernel 2.6.11

Linux kernel 2.6.11 .6

Linux kernel 2.6.11 .12

Linux kernel 2.6.11 -rc2

Linux kernel 2.6.11 .5

Linux kernel 2.6.11 -rc3

Linux kernel 2.6.11 -rc4

Linux kernel 2.6.12 .4

Linux kernel 2.6.12 .3

Linux kernel 2.6.12 .1

Linux kernel 2.6.12 .5

Linux kernel 2.6.12 -rc4

Linux kernel 2.6.12 .2

Linux kernel 2.6.12 -rc5

Linux kernel 2.6.13 -rc4

Linux kernel 2.6.13 .3

Linux kernel 2.6.13

Linux kernel 2.6.13 -rc7

Linux kernel 2.6.13 -rc1

Linux kernel 2.6.13 .2

Linux kernel 2.6.13 .4

Linux kernel 2.6.14 -rc2

Linux kernel 2.6.14 -rc3

Linux kernel 2.6.14

Linux kernel 2.6.14 -rc1

Linux kernel 2.6.14 -rc4

Linux kernel 2.6.14 .2

Linux kernel 2.6.15 -rc1

Linux kernel 2.6.15 -rc2

Linux kernel 2.6.2

Linux kernel 2.6.4

Linux kernel 2.6.7 rc1

Linux kernel 2.6.7

Linux kernel 2.6.8 rc3

Linux kernel 2.6.8 rc2

Linux kernel 2.6.8 rc1

Linux kernel 2.6.8

References

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