Squid Proxy DNS Name Resolver Remote Denial Of Service Vulnerability

BID:12551

Info

Squid Proxy DNS Name Resolver Remote Denial Of Service Vulnerability

Bugtraq ID: 12551
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2005-0446
Remote: Yes
Local: No
Published: Feb 14 2005 12:00AM
Updated: Dec 20 2006 09:32PM
Credit: This vulnerability was announced by the vendor.
Vulnerable: Ubuntu Ubuntu Linux 4.1 ppc
Ubuntu Ubuntu Linux 4.1 ia64
Ubuntu Ubuntu Linux 4.1 ia32
Squid Web Proxy Cache 2.5 .STABLE8
+ Gentoo Linux
+ Redhat Fedora Core3
 + Redhat Fedora Core2
 + Ubuntu Ubuntu Linux 5.0 4 powerpc
 + Ubuntu Ubuntu Linux 5.0 4 i386
 + Ubuntu Ubuntu Linux 5.0 4 amd64
 Squid Web Proxy Cache 2.5 .STABLE7
+ Gentoo Linux
+ Redhat Fedora Core3
 + Redhat Fedora Core2
 Squid Web Proxy Cache 2.5 .STABLE6
+ Mandriva Linux Mandrake 10.1 x86_64
 + S.u.S.E. Linux Personal 9.2 x86_64
 + S.u.S.E. Linux Personal 9.2
+ Turbolinux Appliance Server 1.0 Workgroup Edition
 + Turbolinux Appliance Server 1.0 Hosting Edition
 + Turbolinux Appliance Server Hosting Edition 1.0
+ Turbolinux Appliance Server Workgroup Edition 1.0
+ Turbolinux Turbolinux Server 10.0
+ Turbolinux Turbolinux Server 8.0
+ Turbolinux Turbolinux Server 7.0
+ Turbolinux Turbolinux Workstation 8.0
+ Turbolinux Turbolinux Workstation 7.0
Squid Web Proxy Cache 2.5 .STABLE5
+ S.u.S.E. Linux Personal 9.1 x86_64
 + S.u.S.E. Linux Personal 9.1
+ Trustix Secure Linux 2.1
+ Trustix Secure Linux 2.0
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Squid Web Proxy Cache 2.5 .STABLE4
+ MandrakeSoft Corporate Server 3.0
+ Mandriva Linux Mandrake 10.0 AMD64
 + Mandriva Linux Mandrake 10.0
+ OpenPKG OpenPKG 2.0
+ OpenPKG OpenPKG Current
 Squid Web Proxy Cache 2.5 .STABLE3
+ Mandriva Linux Mandrake 9.2 amd64
 + Mandriva Linux Mandrake 9.2
+ OpenPKG OpenPKG 1.3
+ Redhat Desktop 3.0
+ Redhat Enterprise Linux AS 3
 + Redhat Enterprise Linux ES 3
 + Redhat Enterprise Linux WS 3
 + Redhat Fedora Core1
 + S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0
Squid Web Proxy Cache 2.5 .STABLE1
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
+ S.u.S.E. Linux Personal 8.2
SGI ProPack 3.0
Redhat Linux 9.0 i386
Redhat Linux 7.3 i386
Redhat Fedora Core2
Redhat Fedora Core1
Redhat Enterprise Linux ES 2.1 IA64
Redhat Enterprise Linux ES 2.1
Redhat Enterprise Linux AS 2.1 IA64
Redhat Enterprise Linux AS 2.1
Redhat Application Server WS 3
Redhat Advanced Workstation for the Itanium Processor 2.1 IA64
Redhat Advanced Workstation for the Itanium Processor 2.1
Not Vulnerable:

Discussion

Squid Proxy DNS Name Resolver Remote Denial Of Service Vulnerability

A remote denial-of-service vulnerability is reported to exist in Squid. The issue is reported to present itself when the affected server performs a Fully Qualify Domain Name (FQDN) lookup and receives an unexpected response.

The vendor reports that under the above circumstances, the affected service will crash due to an assertion error, effectively denying service to legitimate users.

Exploit / POC

Squid Proxy DNS Name Resolver 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] <mailto:[email protected]>.

Solution / Fix

Squid Proxy DNS Name Resolver Remote Denial Of Service Vulnerability

Solution:
Please see the referenced vendor advisories for more information and fixes.


Squid Web Proxy Cache 2.5 .STABLE6

Squid Web Proxy Cache 2.5 .STABLE4

Squid Web Proxy Cache 2.5 .STABLE1

Squid Web Proxy Cache 2.5 .STABLE3

Squid Web Proxy Cache 2.5 .STABLE7

Squid Web Proxy Cache 2.5 .STABLE5

Squid Web Proxy Cache 2.5 .STABLE8

SGI ProPack 3.0

References

Squid Proxy DNS Name Resolver Remote Denial Of Service Vulnerability

References:
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