Title: Linux Kernel Decode_Choices Function Remote Denial Of Service Vulnerability
Severity: MODERATE
Description:
The Linux kernel is prone to a remote denial-of-service vulnerability because it fails to handle certain H.323 data.
Specifically, the 'decode_choice()' function in the 'net/netfilter/nf_conntrack_h323_asn1.c' source file fails to adequately handle out-of-range index data that is still encoded with a fixed-length bit field. This can cause the kernel to reference NULL pointers and crash.
Attackers can exploit this issue to crash the affected operating system, denying access to legitimate users.
Versions prior to 2.6.21.6, 2.6.20.15, and 2.6.22 are vulnerable.
Affected Products:
- Debian Linux 4.0
- Debian Linux 4.0 alpha
- Debian Linux 4.0 amd64
- Debian Linux 4.0 arm
- Debian Linux 4.0 hppa
- Debian Linux 4.0 ia-32
- Debian Linux 4.0 ia-64
- Debian Linux 4.0 m68k
- Debian Linux 4.0 mips
- Debian Linux 4.0 mipsel
- Debian Linux 4.0 powerpc
- Debian Linux 4.0 s/390
- Debian Linux 4.0 sparc
- Linux kernel 2.6.0
- Linux kernel 2.6.0 -test1
- Linux kernel 2.6.0 -test10
- Linux kernel 2.6.0 -test11
- Linux kernel 2.6.0 -test2
- Linux kernel 2.6.0 -test3
- Linux kernel 2.6.0 -test4
- Linux kernel 2.6.0 -test5
- Linux kernel 2.6.0 -test6
- Linux kernel 2.6.0 -test7
- Linux kernel 2.6.0 -test8
- Linux kernel 2.6.0 -test9
- Linux kernel 2.6.0 -test9-CVS
- Linux kernel 2.6.0 .10
- Linux kernel 2.6.1
- Linux kernel 2.6.1 -rc1
- Linux kernel 2.6.1 -rc2
- Linux kernel 2.6.10
- Linux kernel 2.6.10
- Linux kernel 2.6.10 rc2
- Linux kernel 2.6.11
- Linux kernel 2.6.11
- Linux kernel 2.6.11 -rc2
- Linux kernel 2.6.11 -rc3
- Linux kernel 2.6.11 -rc4
- Linux kernel 2.6.11 .11
- Linux kernel 2.6.11 .12
- Linux kernel 2.6.11 .4
- Linux kernel 2.6.11 .5
- Linux kernel 2.6.11 .6
- Linux kernel 2.6.11 .7
- Linux kernel 2.6.11 .8
- Linux kernel 2.6.11.4
- Linux kernel 2.6.12
- Linux kernel 2.6.12
- Linux kernel 2.6.12 -rc1
- Linux kernel 2.6.12 -rc4
- Linux kernel 2.6.12 -rc5
- Linux kernel 2.6.12 .1
- Linux kernel 2.6.12 .12
- Linux kernel 2.6.12 .2
- Linux kernel 2.6.12 .22
- Linux kernel 2.6.12 .3
- Linux kernel 2.6.12 .4
- Linux kernel 2.6.12 .5
- Linux kernel 2.6.12 .6
- Linux kernel 2.6.13
- Linux kernel 2.6.13
- Linux kernel 2.6.13 -rc1
- Linux kernel 2.6.13 -rc4
- Linux kernel 2.6.13 -rc6
- Linux kernel 2.6.13 -rc7
- Linux kernel 2.6.13 .1
- Linux kernel 2.6.13 .2
- Linux kernel 2.6.13 .3
- Linux kernel 2.6.13 .4
- Linux kernel 2.6.14
- Linux kernel 2.6.14
- Linux kernel 2.6.14 -rc1
- Linux kernel 2.6.14 -rc2
- Linux kernel 2.6.14 -rc3
- Linux kernel 2.6.14 -rc4
- Linux kernel 2.6.14 .1
- Linux kernel 2.6.14 .2
- Linux kernel 2.6.14 .3
- Linux kernel 2.6.14.4
- Linux kernel 2.6.14.5
- Linux kernel 2.6.15
- Linux kernel 2.6.15
- Linux kernel 2.6.15 -rc1
- Linux kernel 2.6.15 -rc2
- Linux kernel 2.6.15 -rc3
- Linux kernel 2.6.15 -rc4
- Linux kernel 2.6.15 -rc5
- Linux kernel 2.6.15 -rc6
- Linux kernel 2.6.15 .4
- Linux kernel 2.6.15.1
- Linux kernel 2.6.15.11
- Linux kernel 2.6.15.2
- Linux kernel 2.6.15.3
- Linux kernel 2.6.15.5
- Linux kernel 2.6.15.6
- Linux kernel 2.6.16
- Linux kernel 2.6.16
- Linux kernel 2.6.16 -rc1
- Linux kernel 2.6.16 .1
- Linux kernel 2.6.16 .11
- Linux kernel 2.6.16 .12
- Linux kernel 2.6.16 .19
- Linux kernel 2.6.16 .23
- Linux kernel 2.6.16 .7
- Linux kernel 2.6.16 .9
- Linux kernel 2.6.16 13
- Linux kernel 2.6.16 27
- Linux kernel 2.6.16.16
- Linux kernel 2.6.16.17
- Linux kernel 2.6.16.18
- Linux kernel 2.6.16.2
- Linux kernel 2.6.16.21
- Linux kernel 2.6.16.3
- Linux kernel 2.6.16.4
- Linux kernel 2.6.16.5
- Linux kernel 2.6.16.8
- Linux kernel 2.6.17
- Linux kernel 2.6.17
- Linux kernel 2.6.17
- Linux kernel 2.6.17
- Linux kernel 2.6.17 -rc5
- Linux kernel 2.6.17 .8
- Linux kernel 2.6.17.1
- Linux kernel 2.6.17.10
- Linux kernel 2.6.17.11
- Linux kernel 2.6.17.12
- Linux kernel 2.6.17.13
- Linux kernel 2.6.17.14
- Linux kernel 2.6.17.2
- Linux kernel 2.6.17.3
- Linux kernel 2.6.17.4
- Linux kernel 2.6.17.5
- Linux kernel 2.6.17.6
- Linux kernel 2.6.17.7
- Linux kernel 2.6.17.9
- Linux kernel 2.6.18
- Linux kernel 2.6.18
- Linux kernel 2.6.18 .1
- Linux kernel 2.6.18.3
- Linux kernel 2.6.18.4
- Linux kernel 2.6.19
- Linux kernel 2.6.19 -rc1
- Linux kernel 2.6.19 -rc2
- Linux kernel 2.6.19 -rc3
- Linux kernel 2.6.19 -rc4
- Linux kernel 2.6.19.1
- Linux kernel 2.6.19.1
- Linux kernel 2.6.19.2
- Linux kernel 2.6.2
- Linux kernel 2.6.20
- Linux kernel 2.6.20
- Linux kernel 2.6.20-2
- Linux kernel 2.6.20-rc2
- Linux kernel 2.6.20.1
- Linux kernel 2.6.20.11
- Linux kernel 2.6.20.13
- Linux kernel 2.6.20.2
- Linux kernel 2.6.20.3
- Linux kernel 2.6.20.4
- Linux kernel 2.6.20.5
- Linux kernel 2.6.20.8
- Linux kernel 2.6.20.9
- Linux kernel 2.6.21 .1
- Linux kernel 2.6.21 4
- Linux kernel 2.6.21-RC3
- Linux kernel 2.6.21-RC3
- Linux kernel 2.6.21-RC4
- Linux kernel 2.6.21-RC5
- Linux kernel 2.6.21-RC6
- Linux kernel 2.6.21-git8
- Linux kernel 2.6.21.2
- Linux kernel 2.6.21.3
- Linux kernel 2.6.22-rc7
- Linux kernel 2.6.3
- Linux kernel 2.6.4
- Linux kernel 2.6.5
- Linux kernel 2.6.6
- Linux kernel 2.6.6 rc1
- Linux kernel 2.6.7
- Linux kernel 2.6.7 rc1
- Linux kernel 2.6.8
- Linux kernel 2.6.8 rc1
- Linux kernel 2.6.8 rc2
- Linux kernel 2.6.8 rc3
- Linux kernel 2.6.8.1
- Linux kernel 2.6.9
- MandrakeSoft Linux Mandrake 2007.0
- MandrakeSoft Linux Mandrake 2007.0 x86_64
- MandrakeSoft Linux Mandrake 2007.1
- MandrakeSoft Linux Mandrake 2007.1 x86_64
- RedHat Fedora Core2
- RedHat Fedora Core3
- RedHat Fedora Core4
- RedHat Fedora Core6
- S.u.S.E. Linux Enterprise Server 9
- S.u.S.E. Linux Personal 9.1.0
- S.u.S.E. Linux Personal 9.1.0 x86_64
- S.u.S.E. Linux Personal 9.2.0
- S.u.S.E. Linux Personal 9.2.0 x86_64
- Trustix Secure Enterprise Linux 2.0.0
- Trustix Secure Linux 2.0.0
- Trustix Secure Linux 2.1.0
- Trustix Secure Linux 2.2.0
- Trustix Secure Linux 3.0.0
- Ubuntu Ubuntu Linux 4.1.0 ia32
- Ubuntu Ubuntu Linux 4.1.0 ia64
- Ubuntu Ubuntu Linux 4.1.0 ppc
- Ubuntu Ubuntu Linux 5.0.0 4 amd64
- Ubuntu Ubuntu Linux 5.0.0 4 i386
- Ubuntu Ubuntu Linux 5.0.0 4 powerpc
- Ubuntu Ubuntu Linux 7.04 amd64
- Ubuntu Ubuntu Linux 7.04 i386
- Ubuntu Ubuntu Linux 7.04 powerpc
- Ubuntu Ubuntu Linux 7.04 sparc
References:
- Linux: ChangeLog-2.6.21.6
- Linux: ChangeLog-2.6.22
- Linux: Linux Kernel Homepage
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