Squid Proxy NTLM Fakeauth_Auth Memory Leak Remote Denial Of Service Vulnerability

BID:12324

Info

Squid Proxy NTLM Fakeauth_Auth Memory Leak Remote Denial Of Service Vulnerability

Bugtraq ID: 12324
Class: Design Error
CVE: CVE-2005-0096
Remote: Yes
Local: No
Published: Jan 20 2005 12:00AM
Updated: Mar 07 2007 04:55AM
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
Turbolinux Turbolinux Workstation 8.0
Turbolinux Turbolinux Workstation 7.0
Turbolinux Turbolinux Server 10.0
Turbolinux Turbolinux Server 8.0
Turbolinux Turbolinux Server 7.0
Turbolinux Appliance Server Workgroup Edition 1.0
Turbolinux Appliance Server Hosting Edition 1.0
Trustix Secure Linux 2.2
Trustix Secure Linux 2.1
Trustix Secure Linux 1.5
Trustix Secure Enterprise Linux 2.0
SuSE Linux 8.1
SuSE Linux 8.0 i386
SuSE Linux 8.0
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
Squid Web Proxy Cache 2.4 .STABLE7
+ MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ MandrakeSoft Multi Network Firewall 2.0
+ Redhat Enterprise Linux AS 2.1 IA64
 + Redhat Enterprise Linux AS 2.1
 + Redhat Enterprise Linux ES 2.1 IA64
 + Redhat Enterprise Linux ES 2.1
 + Redhat Enterprise Linux WS 2.1 IA64
 + Redhat Enterprise Linux WS 2.1
 + Redhat Linux Advanced Work Station 2.1
Squid Web Proxy Cache 2.4 .STABLE6
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
Squid Web Proxy Cache 2.4 .STABLE2
Squid Web Proxy Cache 2.4
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
Squid Web Proxy Cache 2.3 .STABLE5
Squid Web Proxy Cache 2.3 .STABLE4
Squid Web Proxy Cache 2.1 PATCH2
Squid Web Proxy Cache 2.0 PATCH2
SGI ProPack 3.0
S.u.S.E. Linux Personal 9.2
S.u.S.E. Linux Personal 9.1
S.u.S.E. Linux Personal 9.0 x86_64
S.u.S.E. Linux Personal 9.0
S.u.S.E. Linux Personal 8.2
Redhat Linux 9.0 i386
Redhat Linux 7.3 i386
Redhat Fedora Core2
Redhat Fedora Core1
Gentoo Linux
Astaro Security Linux 4.0 16
Astaro Security Linux 4.0 08
Astaro Security Linux 3.217
Astaro Security Linux 3.2 16
Astaro Security Linux 3.2 15
Astaro Security Linux 3.2 12
Astaro Security Linux 3.2 11
Astaro Security Linux 3.2 10
Astaro Security Linux 3.2 00
Astaro Security Linux 2.0 30
Astaro Security Linux 2.0 27
Astaro Security Linux 2.0 26
Astaro Security Linux 2.0 25
Astaro Security Linux 2.0 24
Astaro Security Linux 2.0 23
Astaro Security Linux 2.0 16
Not Vulnerable:

Discussion

Squid Proxy NTLM Fakeauth_Auth Memory Leak Remote Denial Of Service Vulnerability

Squid is reported to be susceptible to a denial-of-service vulnerability in its NTLM authentication module.

This vulnerability presents itself when an attacker sends unspecified NTLM data to Squid. The issue is caused by a memory leak -- memory allocated to store a base64-decoded string is not freed.

Presumably, this issue allows an attacker to cause the NTLM helper application to run out of memory and fail.

Exploit / POC

Squid Proxy NTLM Fakeauth_Auth Memory Leak 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 NTLM Fakeauth_Auth Memory Leak Remote Denial Of Service Vulnerability

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


Squid Web Proxy Cache 2.4 .STABLE7

Squid Web Proxy Cache 2.4 .STABLE6

Squid Web Proxy Cache 2.5 .STABLE7

Squid Web Proxy Cache 2.5 .STABLE6

Squid Web Proxy Cache 2.5 .STABLE1

Squid Web Proxy Cache 2.5 .STABLE3

Squid Web Proxy Cache 2.5 .STABLE5

SGI ProPack 3.0

References

Squid Proxy NTLM Fakeauth_Auth Memory Leak Remote Denial Of Service Vulnerability

References:
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