PT-2011-4194 · Pidgin · Pidgin

Jan Lieskovsky · Published 2011-08-29 · Updated 2017-09-19 · CVE-2011-2943

Positive Technologies (AI Summary)

CVSS v2.0

4.3

Medium

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Pidgin versions 2.8.0 through 2.9.0

Description The issue arises from the irc msg who function in the IRC protocol plugin, which fails to properly validate characters in nicknames. This allows remote attackers to cause a denial of service, resulting in a NULL pointer dereference and application crash, by using a crafted nickname in a WHO response.

Recommendations For versions 2.8.0 through 2.9.0, update to version 2.10.0 or later to resolve the issue.

Fix

Related Identifiers

CVE-2011-2943

Affected Products

Pidgin

References · 17

• http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43 · Patch
• http://pidgin.im/news/security/?id=53 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-2943 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-2943 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-2943 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2011-2943 · Vendor Advisory
• http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c · Patch
• http://secunia.com/advisories/45663 · Vendor Advisory
• http://xforce.iss.net/xforce/xfdb/69340 · Note
• http://openwall.com/lists/oss-security/2011/08/20/2 · Note
• http://securityfocus.com/bid/49268 · Note
• http://secunia.com/advisories/45916 · Note
• http://openwall.com/lists/oss-security/2011/08/22/2 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=722939 · Note
• https://exchange.xforce.ibmcloud.com/vulnerabilities/69340 · Note