Pidgin MSN SLP buffer overflow

pidgin-msn-slp-bo (50680) The risk level is classified as HighHigh Risk

Description:

Pidgin is vulnerable to a buffer overflow, caused by improper bounds checking when processing MSN SLP messages. By sending specially-crafted MSN SLP messages, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

Note: Adium is also affected by this vulnerability.

*CVSS:

Base Score: 7.5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5.5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Pidgin (2.5.6 or later), available from the Pidgin Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • Adium Web site: Adium Download.
  • Pidgin Web site: MSN malformed SLP message overflow.
  • ZDI-09-031: Multiple Vendor libpurple MSN Protocol SLP Message Heap Overflow Vulnerability.
  • ASA-2009-192: pidgin security update (RHSA-2009-1060)
  • ASA-2009-193: pidgin security update (RHSA-2009-1059)
  • BID-35067: Pidgin Multiple Buffer Overflow Vulnerabilities
  • CVE-2009-1376: Multiple integer overflows in the msn_slplink_process_msg functions in the MSN protocol handler in (1) libpurple/protocols/msn/slplink.c and (2) libpurple/protocols/msnp9/slplink.c in Pidgin (formerly Gaim) before 2.5.6 on 32-bit platforms allow remote attackers to execute arbitrary code via a malformed SLP message with a crafted offset value, leading to buffer overflows. NOTE: this issue exists because of an incomplete fix for CVE-2008-2927.
  • DSA-1805: pidgin -- several vulnerabilities
  • DSA-1870: pidgin -- insufficient input validation
  • GLSA-200905-07: Pidgin: Multiple vulnerabilities
  • GLSA-200910-02: Pidgin: Multiple vulnerabilities
  • MDVSA-2009:140: gaim
  • MDVSA-2009:147: pidgin
  • MDVSA-2009:230: pidgin
  • MDVSA-2009:321: pidgin
  • OSVDB ID: 54647: Pidgin libpurple msn_slplink_process_msg() Function MSN SLP Message Handling Remote Overflow
  • OSVDB ID: 55246: Adium libpurple msn_slplink_process_msg() Function MSN SLP Message Handling Remote Overflow
  • RHSA-2009-1059: Important: pidgin security update
  • RHSA-2009-1060: Important: pidgin security update
  • SA35194: Pidgin Multiple Vulnerabilities
  • SA35381: Adium MSN SLP Message Integer Truncation Vulnerability
  • SUSE-SR:2009:013: SUSE Security Summary Report
  • USN-781-1: Pidgin vulnerabilities
  • USN-781-2: Gaim vulnerabilities
  • USN-886-1: Pidgin vulnerabilities

Platforms Affected:

  • Adium Adium
  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 8.04 LTS
  • Canonical Ubuntu 8.10
  • Debian Debian Linux 5.0
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 2008.0
  • MandrakeSoft Mandrake Linux 2008.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
  • Mandriva Enterprise Server 5
  • Mandriva Enterprise Server 5 X86_64
  • Mandriva Linux 2009.0 X86_64
  • Mandriva Linux 2009.0
  • Mandriva Linux 2009.1 X86_64
  • Mandriva Linux 2009.1
  • Pidgin Pidgin 2.0.0
  • Pidgin Pidgin 2.0.1
  • Pidgin Pidgin 2.0.2
  • Pidgin Pidgin 2.1.0
  • Pidgin Pidgin 2.1.1
  • Pidgin Pidgin 2.2.0
  • Pidgin Pidgin 2.2.1
  • Pidgin Pidgin 2.2.2
  • Pidgin Pidgin 2.3.0
  • Pidgin Pidgin 2.3.1
  • 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
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4.8.z AS
  • RedHat Enterprise Linux 4.8.z ES
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5 Client

Reported:

May 02, 2009

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