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CVE-2011-4601

Date: December 24, 2011

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.

Language: C

Severity Score

Related Resources (18)

https://access.redhat.com/security/cve/CVE-2011-4601
http://pidgin.im/news/security/?id=57
http://www.securityfocus.com/bid/51010
https://security-tracker.debian.org/tracker/CVE-2011-4601
http://www.openwall.com/lists/oss-security/2011/12/10/1
http://www.openwall.com/lists/oss-security/2011/12/10/2
https://nvd.nist.gov/vuln/detail/CVE-2011-4601
http://www.redhat.com/support/errata/RHSA-2011-1821.html
http://developer.pidgin.im/viewmtn/revision/info/757272a78a8ca6027d518e614712c3399e34dda3
https://hermes.opensuse.org/messages/13195955
http://www.mandriva.com/security/advisories?name=MDVSA-2011:183
http://secunia.com/advisories/47234
https://people.canonical.com/~ubuntu-security/cve/CVE-2011-4601
http://www.redhat.com/support/errata/RHSA-2011-1820.html
http://developer.pidgin.im/viewmtn/revision/diff/bc79b1bf09dcfa1d8edac86a06761fce7416e69c/with/757272a78a8ca6027d518e614712c3399e34dda3/libpurple/protocols/oscar/family_feedbag.c
http://secunia.com/advisories/47219
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18408
https://www.mend.io/vulnerability-database/CVE-2011-4601

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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