Title: Pidgin OSCAR Plugin Invalid Memory Access Denial Of Service Vulnerability
Severity: MODERATE
Description:
Pidgin is a multiplatform instant-messaging application.
Pidgin is prone to a denial-of-service vulnerability because of 'invalid memory access' errors in the OSCAR plugin protocol when processing malformed messages. The issue occurs in the 'libpurple/protocols/oscar/oscar.c' source file. The issue can be triggered when a SIM IM client sends contacts to a libpurple-based client.
Attackers can exploit this issue to cause denial-of-service conditions. Given the nature of these issues, attackers may also be able to run arbitrary code, but this has not been confirmed.
Versions prior to Pidgin 2.6.3 are vulnerable.
Affected Products:
- Adium Adium 1.3
- Adium Adium 1.3.3
- Adium Adium 1.3.4
- Adium Adium 1.3.5
- Adium Adium 1.3.6
- Pidgin Pidgin 2.0.0
- Pidgin Pidgin 2.0.2
- Pidgin Pidgin 2.1.0
- Pidgin Pidgin 2.2.0
- Pidgin Pidgin 2.2.1
- Pidgin Pidgin 2.2.2
- Pidgin Pidgin 2.4.0
- Pidgin Pidgin 2.4.1
- Pidgin Pidgin 2.4.2
- Pidgin Pidgin 2.4.3
- Pidgin Pidgin 2.4.3
- Pidgin Pidgin 2.5.5
- Pidgin Pidgin 2.5.6
- Pidgin Pidgin 2.5.6
- Pidgin Pidgin 2.5.7
- Pidgin Pidgin 2.5.8
- Pidgin Pidgin 2.5.9
- Pidgin Pidgin 2.6.0
- Pidgin Pidgin 2.6.1
- RedHat Desktop 3.0.0
- RedHat Enterprise Linux AS 3
- RedHat Enterprise Linux AS 4
- RedHat Enterprise Linux Desktop 5 client
- RedHat Enterprise Linux Desktop Workstation 5 client
- RedHat Enterprise Linux Desktop version 4
- RedHat Enterprise Linux ES 3
- RedHat Enterprise Linux ES 4
- RedHat Enterprise Linux Optional Productivity Application 5 server
- RedHat Enterprise Linux WS 3
- RedHat Enterprise Linux WS 4
- RedHat Fedora 10
- RedHat Fedora 11
- Slackware Linux -current
- Slackware Linux -current
- Slackware Linux 12.0
- Slackware Linux 12.1
- Slackware Linux 12.2
- Slackware Linux 13.0
- Slackware Linux 13.0 x86_64
References:
- Adium: Adium Homepage
- Adium: Version 1.3.7 (10/16/2009)
- Pidgin: ICQ and maybe AIM remote crash
- Pidgin: Pidgin Changelog
- Pidgin: Pidgin Homepage
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