CVE-2009-3084: Pidgin Libpurple

Medium severity, CVSS 5.0. EPSS: 2.5% chance of exploitation in the next 30 days.

The msn_slp_process_msg function in libpurple/protocols/msn/slpcall.c in the MSN protocol plugin in libpurple 2.6.0 and 2.6.1, as used in Pidgin before 2.6.2, allows remote attackers to cause a denial of service (application crash) via a handwritten (aka Ink) message, related to an uninitialized variable and the incorrect "UTF16-LE" charset name.

Affected products

• Pidgin Libpurple: version 2.6.0 only; version 2.6.1 only
• Pidgin Pidgin: up to and including 2.6.1; version 2.0.0 only; version 2.0.1 only; version 2.0.2 only; version 2.1.0 only; version 2.1.1 only; …

Published 2009-09-08. Last modified 2026-06-16.