Input validation error in Pidgin - CVE-2011-4601
Published: December 25, 2011 / Updated: August 11, 2020
Vulnerability identifier: #VU44427
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2011-4601
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
family_feedbag.c in the oscar protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial of service (application crash) via a crafted (1) AIM or (2) ICQ message associated with buddy-list addition.
Affected software
Pidgin
How to mitigate CVE-2011-4601
Install update from vendor's website.
External References
- http://developer.pidgin.im/viewmtn/revision/diff/bc79b1bf09dcfa1d8edac86a06761fce7416e69c/with/757272a78a8ca6027d518e614712c3399e34dda3/libpurple/protocols/oscar/family_feedbag.c
- http://developer.pidgin.im/viewmtn/revision/info/757272a78a8ca6027d518e614712c3399e34dda3
- http://pidgin.im/news/security/?id=57
- http://secunia.com/advisories/47219
- http://secunia.com/advisories/47234
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:183
- http://www.openwall.com/lists/oss-security/2011/12/10/1
- http://www.openwall.com/lists/oss-security/2011/12/10/2
- http://www.redhat.com/support/errata/RHSA-2011-1820.html
- http://www.redhat.com/support/errata/RHSA-2011-1821.html
- http://www.securityfocus.com/bid/51010
- https://hermes.opensuse.org/messages/13195955
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18408