VULNERABILITY INTELLIGENCE

CVE-2011-2943

CVSS score4.3 MEDIUM
EPSS probability3.60%
CISA KEVNot currently listed
Published2011-08-29
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:N/A:P

Description

The irc_msg_who function in msgs.c in the IRC protocol plugin in libpurple 2.8.0 through 2.9.0 in Pidgin before 2.10.0 does not properly validate characters in nicknames, which allows user-assisted remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted nickname that is not properly handled in a WHO response.

Primary references