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    CVE-2011-1091

    libymsg.c in the Yahoo! protocol plugin in libpurple in Pidgin 2.6.0 through 2.7.10 allows (1) remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG notification packet, and allows (2) remote Yahoo! servers to cause a denial of service (NULL pointer dereference and application crash) via a malformed YMSG SMS message.

    Published:Mar 10, 2011
    Last Modified:Apr 11, 2025
    EPS:Mar 14, 2011
    EPSS Score:0.01489
    CVSS Score:4

    Affected Products

    Vendor
    Pidgin
    Product
    Pidgin
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    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/5cbe18129b6e7c660bc093f7e5e1414ceca17d04/with/a7c415abba1f5f01f79295337518837f73d99bb7/libpurple/protocols/yahoo/libymsg.c
    http://developer.pidgin.im/viewmtn/revision/info/a7c415abba1f5f01f79295337518837f73d99bb7
    http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055874.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056309.html
    http://secunia.com/advisories/43695
    http://secunia.com/advisories/43721
    http://secunia.com/advisories/46376
    http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.466884
    http://www.pidgin.im/news/security/?id=51
    http://www.redhat.com/support/errata/RHSA-2011-0616.html
    http://www.redhat.com/support/errata/RHSA-2011-1371.html
    http://www.securityfocus.com/bid/46837
    http://www.vupen.com/english/advisories/2011/0643
    http://www.vupen.com/english/advisories/2011/0661
    http://www.vupen.com/english/advisories/2011/0669
    http://www.vupen.com/english/advisories/2011/0703
    https://bugzilla.redhat.com/show_bug.cgi?id=683031
    https://exchange.xforce.ibmcloud.com/vulnerabilities/66055
    https://hermes.opensuse.org/messages/13195955
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18402
    http://developer.pidgin.im/viewmtn/revision/diff/5cbe18129b6e7c660bc093f7e5e1414ceca17d04/with/a7c415abba1f5f01f79295337518837f73d99bb7/libpurple/protocols/yahoo/libymsg.c
    http://developer.pidgin.im/viewmtn/revision/info/a7c415abba1f5f01f79295337518837f73d99bb7
    http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055874.html
    http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056309.html
    http://secunia.com/advisories/43695
    http://secunia.com/advisories/43721
    http://secunia.com/advisories/46376
    http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.466884
    http://www.pidgin.im/news/security/?id=51
    http://www.redhat.com/support/errata/RHSA-2011-0616.html
    http://www.redhat.com/support/errata/RHSA-2011-1371.html
    http://www.securityfocus.com/bid/46837
    http://www.vupen.com/english/advisories/2011/0643
    http://www.vupen.com/english/advisories/2011/0661
    http://www.vupen.com/english/advisories/2011/0669
    http://www.vupen.com/english/advisories/2011/0703
    https://bugzilla.redhat.com/show_bug.cgi?id=683031
    https://exchange.xforce.ibmcloud.com/vulnerabilities/66055
    https://hermes.opensuse.org/messages/13195955
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18402

    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