Vulnerability Details 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 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.04
EPSS Ranking 87.7%
CVSS Severity
CVSS v2 Score 4.3
References
- http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c
- http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43
- http://pidgin.im/news/security/?id=53
- http://secunia.com/advisories/45663
- http://secunia.com/advisories/45916
- http://securitytracker.com/id?1025961
- http://www.openwall.com/lists/oss-security/2011/08/20/2
- http://www.openwall.com/lists/oss-security/2011/08/22/2
- http://www.securityfocus.com/bid/49268
- https://bugzilla.redhat.com/show_bug.cgi?id=722939
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69340
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005
- http://developer.pidgin.im/viewmtn/revision/diff/5749f9193063800d27bef75c2388f6f9cc2f7f37/with/5c2dba4a7e2e76b76e7f472b88953a4316706d43/libpurple/protocols/irc/msgs.c
- http://developer.pidgin.im/viewmtn/revision/info/5c2dba4a7e2e76b76e7f472b88953a4316706d43
- http://pidgin.im/news/security/?id=53
- http://secunia.com/advisories/45663
- http://secunia.com/advisories/45916
- http://securitytracker.com/id?1025961
- http://www.openwall.com/lists/oss-security/2011/08/20/2
- http://www.openwall.com/lists/oss-security/2011/08/22/2
- http://www.securityfocus.com/bid/49268
- https://bugzilla.redhat.com/show_bug.cgi?id=722939
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69340
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18005
Products affected by CVE-2011-2943
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cpe:2.3:a:pidgin:libpurple:2.8.0
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cpe:2.3:a:pidgin:libpurple:2.9.0
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cpe:2.3:a:pidgin:pidgin:-
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cpe:2.3:a:pidgin:pidgin:1.5.1
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cpe:2.3:a:pidgin:pidgin:2.0.0
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cpe:2.3:a:pidgin:pidgin:2.0.1
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cpe:2.3:a:pidgin:pidgin:2.0.2
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cpe:2.3:a:pidgin:pidgin:2.1.0
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cpe:2.3:a:pidgin:pidgin:2.1.1
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cpe:2.3:a:pidgin:pidgin:2.2.0
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cpe:2.3:a:pidgin:pidgin:2.2.1
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cpe:2.3:a:pidgin:pidgin:2.2.2
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cpe:2.3:a:pidgin:pidgin:2.3.0
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cpe:2.3:a:pidgin:pidgin:2.3.1
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cpe:2.3:a:pidgin:pidgin:2.4.0
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cpe:2.3:a:pidgin:pidgin:2.4.1
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cpe:2.3:a:pidgin:pidgin:2.4.2
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cpe:2.3:a:pidgin:pidgin:2.4.3
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cpe:2.3:a:pidgin:pidgin:2.5.0
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cpe:2.3:a:pidgin:pidgin:2.5.1
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cpe:2.3:a:pidgin:pidgin:2.5.2
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cpe:2.3:a:pidgin:pidgin:2.5.3
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cpe:2.3:a:pidgin:pidgin:2.5.4
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cpe:2.3:a:pidgin:pidgin:2.5.5
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cpe:2.3:a:pidgin:pidgin:2.5.6
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cpe:2.3:a:pidgin:pidgin:2.5.7
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cpe:2.3:a:pidgin:pidgin:2.5.8
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cpe:2.3:a:pidgin:pidgin:2.5.9
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cpe:2.3:a:pidgin:pidgin:2.6.0
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cpe:2.3:a:pidgin:pidgin:2.6.1
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cpe:2.3:a:pidgin:pidgin:2.6.2
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cpe:2.3:a:pidgin:pidgin:2.6.3
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cpe:2.3:a:pidgin:pidgin:2.6.4
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cpe:2.3:a:pidgin:pidgin:2.6.5
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cpe:2.3:a:pidgin:pidgin:2.6.6
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cpe:2.3:a:pidgin:pidgin:2.7.0
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cpe:2.3:a:pidgin:pidgin:2.7.1
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cpe:2.3:a:pidgin:pidgin:2.7.10
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cpe:2.3:a:pidgin:pidgin:2.7.11
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cpe:2.3:a:pidgin:pidgin:2.7.2
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cpe:2.3:a:pidgin:pidgin:2.7.3
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cpe:2.3:a:pidgin:pidgin:2.7.4
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cpe:2.3:a:pidgin:pidgin:2.7.5
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cpe:2.3:a:pidgin:pidgin:2.7.6
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cpe:2.3:a:pidgin:pidgin:2.7.7
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cpe:2.3:a:pidgin:pidgin:2.7.8
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cpe:2.3:a:pidgin:pidgin:2.7.9
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cpe:2.3:a:pidgin:pidgin:2.8.0
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cpe:2.3:a:pidgin:pidgin:2.9.0