Asterisk TCP/TLS Server NULL Pointer Dereference Denial Of Service Vulnerability

BID:46898

Info

Asterisk TCP/TLS Server NULL Pointer Dereference Denial Of Service Vulnerability

Bugtraq ID: 46898
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2011-1175
Remote: Yes
Local: No
Published: Mar 16 2011 12:00AM
Updated: May 07 2015 05:20PM
Credit: Blake Cornell and Chris Maj
Vulnerable: Gentoo Linux
Debian Linux 5.0 sparc
Debian Linux 5.0 s/390
Debian Linux 5.0 powerpc
Debian Linux 5.0 mipsel
Debian Linux 5.0 mips
Debian Linux 5.0 m68k
Debian Linux 5.0 ia-64
Debian Linux 5.0 ia-32
Debian Linux 5.0 hppa
Debian Linux 5.0 armel
Debian Linux 5.0 arm
Debian Linux 5.0 amd64
Debian Linux 5.0 alpha
Debian Linux 5.0
Asterisk Asterisk 1.8.2 4
Asterisk Asterisk 1.8.1
Asterisk Asterisk 1.8
Asterisk Asterisk 1.6.2 16.2
Asterisk Asterisk 1.6.2 .5
Asterisk Asterisk 1.6.2
Asterisk Asterisk 1.6.1 22
Asterisk Asterisk 1.6.1 11
Asterisk Asterisk 1.6.1 0-rc2
Asterisk Asterisk 1.6.1 0-rc1
Asterisk Asterisk 1.6.1 .9
Asterisk Asterisk 1.6.1 .6
Asterisk Asterisk 1.6.1 .5
Asterisk Asterisk 1.6.1 .17
Asterisk Asterisk 1.6.1
Asterisk Asterisk 1.8.2.1
Asterisk Asterisk 1.8.1.2
Asterisk Asterisk 1.8
Asterisk Asterisk 1.6.2.2
Asterisk Asterisk 1.6.2.16.1
Asterisk Asterisk 1.6.2.15.1
Asterisk Asterisk 1.6.1.8
Asterisk Asterisk 1.6.1.7
Asterisk Asterisk 1.6.1.21
Asterisk Asterisk 1.6.1.14
Not Vulnerable: Asterisk Asterisk 1.8.3.1
Asterisk Asterisk 1.6.2.17.1
Asterisk Asterisk 1.6.1.23

Discussion

Asterisk TCP/TLS Server NULL Pointer Dereference Denial Of Service Vulnerability

Asterisk is prone to a remote denial-of-service vulnerability caused by a NULL-pointer dereference.

Attackers can exploit this issue to cause the server to dereference an invalid memory location, resulting in a denial-of-service condition.

Solution / Fix

Asterisk TCP/TLS Server NULL Pointer Dereference Denial Of Service Vulnerability

Solution:
Updates are available. Please see the references for more information.

References

Asterisk TCP/TLS Server NULL Pointer Dereference Denial Of Service Vulnerability

References:

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