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.
Key facts
- CVSS score
- 4.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:S/C:N/I:N/A:P- EPSS score
- 2.6% (86th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1105)
- Published
- March 14, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1105 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
- pidgin / pidgin
References
- http://developer.pidgin.im/viewmtn/revision/diff/5cbe18129b6e7c660bc093f7e5e1414ceca17d04/with/a7c415abba1f5f01f79295337518837f73d99bb7/libpurple/protocols/yahoo/libymsg.c(Patch)
- http://developer.pidgin.im/viewmtn/revision/info/a7c415abba1f5f01f79295337518837f73d99bb7(Patch)
- 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(Vendor Advisory)
- 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(Patch, Vendor Advisory)
- 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
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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