CVE-2011-2943

Published: Aug 29, 2011Updated: Apr 29, 2026 Sources: CVE List NVDNVD-CWE-Other

4.3MEDIUM

NVD MITRE

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAccess Vector

Network

AC:MAccess Complexity

Medium

Au:NAuthentication

None

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:PAvailability

Partial

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Weaknesses

NVD-CWE-Other

Affected Products

pidgin

oss-projectaka libpurple, mxit

libpurpleLibraryLibrary

Communications / messaging-chat

pidginOn-premDesktop App

Communications / messaging-chat

and 1 more affected products View all →

Exploitability

Official Patch Available

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References

http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c

developer.pidgin.im

http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43

developer.pidgin.im

http://pidgin.im/news/security/?id=53

pidgin.im

and 9 more references View all →

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