CVE-2011-4601

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    CVE-2011-4601

    Published: 25 Dec 2011Last Modified: 10 Apr 2026

    Summary:

    Details: 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.

    References: 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://developer.pidgin.im/viewmtn/revision/diff/bc79b1bf09dcfa1d8edac86a06761fce7416e69c/with/757272a78a8ca6027d518e614712c3399e34dda3/libpurple/protocols/oscar/family_feedbag.c, http://developer.pidgin.im/viewmtn/revision/info/757272a78a8ca6027d518e614712c3399e34dda3, 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

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High