CVE-2011-2943

Severity

43%

Complexity

86%

Confidentiality

48%

Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

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.

Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P).

Overview

First reported 13 years ago

2011-08-29 17:55:00

Last updated 7 years ago

2017-09-19 01:33:00

Affected Software

Pidgin Libpurple 2.8.0

2.8.0

Pidgin Libpurple 2.9.0

2.9.0

Pidgin 2.0.0

2.0.0

Pidgin 2.0.1

2.0.1

Pidgin 2.0.2

2.0.2

Pidgin 2.1.0

2.1.0

Pidgin 2.1.1

2.1.1

Pidgin 2.2.0

2.2.0

Pidgin 2.2.1

2.2.1

Pidgin 2.2.2

2.2.2

Pidgin 2.3.0

2.3.0

Pidgin 2.3.1

2.3.1

Pidgin 2.4.0

2.4.0

Pidgin 2.4.1

2.4.1

Pidgin 2.4.2

2.4.2

Pidgin 2.4.3

2.4.3

Pidgin 2.5.0

2.5.0

Pidgin 2.5.1

2.5.1

Pidgin 2.5.2

2.5.2

Pidgin 2.5.3

2.5.3

Pidgin 2.5.4

2.5.4

Pidgin 2.5.5

2.5.5

Pidgin 2.5.6

2.5.6

Pidgin 2.5.6

2.5.7

Pidgin 2.5.8

2.5.8

Pidgin 2.5.9

2.5.9

Pidgin 2.6.0

2.6.0

Pidgin 2.6.1

2.6.1

Pidgin 2.6.2

2.6.2

Pidgin 2.6.4

2.6.4

Pidgin 2.6.5

2.6.5

Pidgin 2.6.6

2.6.6

Pidgin 2.7.0

2.7.0

Pidgin 2.7.1

2.7.1

Pidgin 2.7.2

2.7.2

Pidgin 2.7.3

2.7.3

Pidgin 2.7.4

2.7.4

Pidgin 2.7.5

2.7.5

Pidgin 2.7.6

2.7.6

Pidgin 2.7.7

2.7.7

Pidgin 2.7.8

2.7.8

Pidgin 2.7.9

2.7.9

Pidgin 2.7.10

2.7.10

Pidgin 2.7.11

2.7.11

Pidgin 2.8.0

2.8.0

Pidgin

References

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

Patch, Vendor Advisory

45663

Vendor Advisory

45916

1025961

[oss-security] 20110820 CVE request: Pidgin crash

[oss-security] 20110822 Re: CVE request: Pidgin crash

49268

https://bugzilla.redhat.com/show_bug.cgi?id=722939

pidgin-irc-protocol-dos(69340)

oval:org.mitre.oval:def:18005

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