Unscored severity · published Aug 29, 2011
CVE-2011-2943
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…
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CVSS
3.6%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)3.6% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libpurple · Pidgin
2.8.0; 2.9.0 · source: NVD
PI
Pidgin · Pidgin
through 2.9.0; 2.0.0; 2.0.1; 2.0.2; 2.1.0; 2.1.1; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-2943
CVE.org
https://www.cve.org/CVERecord?id=CVE-2011-2943
Patch
http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c
Patch
http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43
Patch
http://pidgin.im/news/security/?id=53
Vendor Advisory
http://secunia.com/advisories/45663
secunia.com
http://secunia.com/advisories/45916
securitytracker.com
http://securitytracker.com/id?1025961
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