Pidgin Open System for CommunicAtion in Realtime (OSCAR) denial of service

pidgin-oscar-dos (51448) The risk level is classified as MediumMedium Risk

Description:

Pidgin is vulnerable to a denial of service, caused by an out-of-memory flaw in the Open System for CommunicAtion in Realtime (OSCAR) protocol implementation. By sending a specially-crafted Web message, a remote attacker could cause the application to crash.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of Pidgin (2.5.8 or later), available from the Pidgin Web site. See References.

References:

  • Pidgin Web site: Pidgin 2.5.8.
  • Pidgin Web Ticket #9483 : OOM/abort when receiving ICQWebMessage.
  • Red Hat Bugzilla Bug 508738: CVE-2009-1889 pidgin: DoS via specially-crafted ICQWebMessage.
  • ASA-2009-261: pidgin security and bug fix update (RHSA-2009-1139)
  • BID-35530: Pidgin OSCAR Protocol Web Message Denial of Service Vulnerability
  • CVE-2009-1889: The OSCAR protocol implementation in Pidgin before 2.5.8 misinterprets the ICQWebMessage message type as the ICQSMS message type, which allows remote attackers to cause a denial of service (application crash) via a crafted ICQ web message that triggers allocation of a large amount of memory.
  • GLSA-200910-02: Pidgin: Multiple vulnerabilities
  • MDVSA-2009:321: pidgin
  • OSVDB ID: 55588: Pidgin OSCAR Protocol Implementation Crafted ICQWebMessage Remote DoS
  • RHSA-2009-1139: Moderate: pidgin security and bug fix update
  • SA35652: Pidgin ICQ Web Message Denial of Service Weakness
  • SUSE-SR:2009:013: SUSE Security Summary Report
  • USN-796-1: Pidgin vulnerability

Platforms Affected:

  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • Pidgin Pidgin 2.4.0
  • Pidgin Pidgin 2.4.1
  • Pidgin Pidgin 2.4.2
  • Pidgin Pidgin 2.4.3
  • Pidgin Pidgin 2.5.5
  • Pidgin Pidgin 2.5.6
  • Pidgin Pidgin 2.5.7
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4.8.z AS
  • RedHat Enterprise Linux 4.8.z ES
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux Optional Productivity Applications 5 Server
  • RedHat Enterprise Linux Optional Productivity Applications 5.3.z EUS

Reported:

Jun 30, 2009

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