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    CVE-2011-3184

    The msn_httpconn_parse_data function in httpconn.c in the MSN protocol plugin in libpurple in Pidgin before 2.10.0 does not properly handle HTTP 100 responses, which allows remote attackers to cause a denial of service (incorrect memory access and application crash) via vectors involving a crafted server message.

    Published:Aug 20, 2011
    Last Modified:Apr 11, 2025
    EPS:Aug 29, 2011
    EPSS Score:0.02692
    CVSS Score:4.3

    Affected Products

    Vendor
    Pidgin
    Product
    Pidgin

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2019-25544 (CVSS 6.9) — Pidgin 2.13.0 contains a denial of service vulnerability that allows local attackers to crash the application …
    CVE-2022-26491 (CVSS 5.9) — An issue was discovered in Pidgin before 2.14.9. A remote attacker who can spoof DNS responses can redirect a …
    CVE-2017-2640 (CVSS 7.5) — An out-of-bounds write flaw was found in the way Pidgin before 2.12.0 processed XML content. A malicious remot…
    CVE-2016-2380 (CVSS 3.1) — An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent to…
    CVE-2016-4323 (CVSS 3.7) — A directory traversal exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent …
    CVE-2016-2374 (CVSS 8.1) — An exploitable memory corruption vulnerability exists in the handling of the MXIT protocol in Pidgin. Speciall…
    CVE-2016-2369 (CVSS 5.9) — A NULL pointer dereference vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially craf…
    CVE-2016-2367 (CVSS 5.9) — An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent vi…
    CVE-2016-2368 (CVSS 8.1) — Multiple memory corruption vulnerabilities exist in the handling of the MXIT protocol in Pidgin. Specially cra…
    CVE-2016-2372 (CVSS 5.9) — An information leak exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent vi…

    References

    http://developer.pidgin.im/viewmtn/revision/diff/5c2dba4a7e2e76b76e7f472b88953a4316706d43/with/16af0661899a978b4fedc1c165965b85009013d1/libpurple/protocols/msn/httpconn.c
    http://developer.pidgin.im/viewmtn/revision/info/16af0661899a978b4fedc1c165965b85009013d1
    http://lists.fedoraproject.org/pipermail/package-announce/2011-August/064943.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065190.html
    http://pidgin.im/news/security/?id=54
    http://secunia.com/advisories/45663
    http://secunia.com/advisories/45916
    http://securitytracker.com/id?1025961
    http://www.openwall.com/lists/oss-security/2011/08/22/10
    http://www.openwall.com/lists/oss-security/2011/08/22/12
    http://www.openwall.com/lists/oss-security/2011/08/22/4
    http://www.openwall.com/lists/oss-security/2011/08/22/7
    http://www.securityfocus.com/bid/49268
    https://bugzilla.redhat.com/show_bug.cgi?id=732405
    https://exchange.xforce.ibmcloud.com/vulnerabilities/69341
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18284
    http://developer.pidgin.im/viewmtn/revision/diff/5c2dba4a7e2e76b76e7f472b88953a4316706d43/with/16af0661899a978b4fedc1c165965b85009013d1/libpurple/protocols/msn/httpconn.c
    http://developer.pidgin.im/viewmtn/revision/info/16af0661899a978b4fedc1c165965b85009013d1
    http://lists.fedoraproject.org/pipermail/package-announce/2011-August/064943.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065190.html
    http://pidgin.im/news/security/?id=54
    http://secunia.com/advisories/45663
    http://secunia.com/advisories/45916
    http://securitytracker.com/id?1025961
    http://www.openwall.com/lists/oss-security/2011/08/22/10
    http://www.openwall.com/lists/oss-security/2011/08/22/12
    http://www.openwall.com/lists/oss-security/2011/08/22/4
    http://www.openwall.com/lists/oss-security/2011/08/22/7
    http://www.securityfocus.com/bid/49268
    https://bugzilla.redhat.com/show_bug.cgi?id=732405
    https://exchange.xforce.ibmcloud.com/vulnerabilities/69341
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18284

    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