Squid NTLM authentication denial of service

squid-ntlm-authentication-dos (24282) The risk level is classified as LowLow Risk

Description:

Squid is vulnerable to a denial of service attack. If NTLM authentication is used, changes to the authentication scheme could cause the service to crash.

Platforms Affected:

  • Canonical, Ubuntu 4.10
  • Canonical, Ubuntu 5.04
  • Debian, Debian Linux 3.1
  • MandrakeSoft, Mandrake Linux 10.1 X86_64
  • MandrakeSoft, Mandrake Linux 10.1
  • MandrakeSoft, Mandrake Linux 2006 X86_64
  • MandrakeSoft, Mandrake Linux 2006
  • MandrakeSoft, Mandrake Linux LE2005
  • MandrakeSoft, Mandrake Linux LE2005 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 2.1
  • MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0
  • MandrakeSoft, Mandrake Multi Network Firewall 2.0
  • RedHat, Enterprise Linux 3 WS
  • RedHat, Enterprise Linux 3 AS
  • RedHat, Enterprise Linux 3 ES
  • RedHat, Enterprise Linux 3 Desktop
  • RedHat, Enterprise Linux 4 AS
  • RedHat, Enterprise Linux 4 Desktop
  • RedHat, Enterprise Linux 4 WS
  • RedHat, Enterprise Linux 4 ES
  • SGI, Advanced Linux Environment 3
  • Squid-Cache, Squid 2.5.STABLE1
  • Squid-Cache, Squid 2.5.STABLE10
  • Squid-Cache, Squid 2.5.STABLE2
  • Squid-Cache, Squid 2.5.STABLE3
  • Squid-Cache, Squid 2.5.STABLE4
  • Squid-Cache, Squid 2.5.STABLE5
  • Squid-Cache, Squid 2.5.STABLE6
  • Squid-Cache, Squid 2.5.STABLE7
  • Squid-Cache, Squid 2.5.STABLE8
  • Squid-Cache, Squid 2.5.STABLE9
  • Turbolinux, Turbolinux 10 Server
  • Turbolinux, Turbolinux 10 Server x64 Ed
  • Turbolinux, Turbolinux 7 Server
  • Turbolinux, Turbolinux 8 Server
  • Turbolinux, Turbolinux 8 Workstation
  • Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed

Remedy:

Apply the 2.5.STABLE10 patch or later for this vulnerability, available from the Squid 2.5 Web page. See References.

For Red Hat Linux:
Refer to RHSA-2006:0052-7 or RHSA-2006:0045-8 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-192-1 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Denial of Service

References:

Reported:

Sep 30, 2005

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

Return to the main page