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CVE
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CVE-2011-2943Date: (C)2011-08-29   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 4.3
Exploit Score: 8.6
Impact Score: 2.9
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality: NONE
Integrity: NONE
Availability: PARTIAL
  
Reference:
SECTRACK-1025961
SECUNIA-45663
SECUNIA-45916
BID-49268
http://www.openwall.com/lists/oss-security/2011/08/20/2
http://www.openwall.com/lists/oss-security/2011/08/22/2
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
https://bugzilla.redhat.com/show_bug.cgi?id=722939
oval:org.mitre.oval:def:18005
pidgin-irc-protocol-dos(69340)

CPE    46
cpe:/a:pidgin:pidgin:2.7.9
cpe:/a:pidgin:pidgin:2.1.0
cpe:/a:pidgin:pidgin:2.1.1
cpe:/a:pidgin:pidgin:2.3.0
...
OVAL    4
oval:org.secpod.oval:def:2189
oval:org.secpod.oval:def:1000437
oval:org.secpod.oval:def:301117
oval:org.secpod.oval:def:1000427
...

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