Squid clientProcessRequest() function denial of service

squid-clientprocessrequest-dos (33124) The risk level is classified as LowLow Risk

Description:

Squid is vulnerable to a denial of service, caused by a vulnerability in the clientProcessRequest() function when processing TRACE requests. By sending a specially-crafted TRACE request, a remote authenticated attacker could cause the proxy service to crash.

*CVSS:

Base Score: 3
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 2.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to SQUID-2007:1 for patch or upgrade information. See References.

For Red Hat Linux (squid):
Refer to RHSA-2007:0131 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-441-1 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux:
Refer to GLSA 200703-27 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux (squid):
Refer to MDKSA-2007:068 for patch, upgrade, or suggested workaround information. See References.

For Turbolinux (Squid):
Refer to TLSA-2007-23 for patch, upgrade, or suggested workaround information. See References.

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

References:

  • Squid Web site: Squid Web Proxy Cache.
  • SQUID-2007:1: Denial of service in TRACE method processing.
  • ASA-2007-163: squid security update (RHSA-2007-0131)
  • BID-23085: Squid Proxy TRACE Request Remote Denial of Service Vulnerability
  • CVE-2007-1560: The clientProcessRequest() function in src/client_side.c in Squid 2.6 before 2.6.STABLE12 allows remote attackers to cause a denial of service (daemon crash) via crafted TRACE requests that trigger an assertion error.
  • GLSA-200703-27: Squid: Denial of Service
  • MDKSA-2007:068: Updated squid packages fix DoS vulnerability
  • RHSA-2007-0131: Moderate: squid security update
  • SA24611: Squid TRACE Request Denial of Service Vulnerability
  • SECTRACK ID: 1017805: Squid TRACE Method Bug Lets Remote Users Deny Service
  • SUSE-SR:2007:005: SUSE Security Summary Report

Platforms Affected:

  • Canonical Ubuntu 6.10
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 2006
  • MandrakeSoft Mandrake Linux 2006 X86_64
  • MandrakeSoft Mandrake Linux 2007 X86_64
  • MandrakeSoft Mandrake Linux 2007
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Multi Network Firewall 2.0
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5
  • Squid-Cache Squid 2.6.STABLE1
  • Squid-Cache Squid 2.6.STABLE10
  • Squid-Cache Squid 2.6.STABLE11
  • Squid-Cache Squid 2.6.STABLE2
  • Squid-Cache Squid 2.6.STABLE3
  • Squid-Cache Squid 2.6.STABLE4
  • Squid-Cache Squid 2.6.STABLE5
  • Squid-Cache Squid 2.6.STABLE6
  • Squid-Cache Squid 2.6.STABLE7
  • Squid-Cache Squid 2.6.STABLE8
  • Squid-Cache Squid 2.6.STABLE9
  • Turbolinux Turbolinux 10 Server
  • Turbolinux Turbolinux 10 Server x64 Ed
  • Turbolinux Turbolinux 8 Server
  • Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
  • Turbolinux Turbolinux Appliance Server 2.0

Reported:

Mar 20, 2007

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