CVE-2011-2943
The MITRE CVE dictionary describes this issue as:
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.
Find out more about CVE-2011-2943 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
Not vulnerable. This issue did not affect the versions of pidgin as
shipped with Red Hat Enterprise Linux 4, 5, or 6 as they contained a version of pidgin that did not support /who IRC protocol command.
CVSS v2 metrics
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 4 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 6 | pidgin | Not affected |
| Red Hat Enterprise Linux 5 | pidgin | Not affected |
| Red Hat Enterprise Linux 4 | pidgin | Not affected |
Acknowledgements
Red Hat would like to thank the Pidgin project for reporting this issue.CVE description copyright © 2017, The MITRE Corporation