CVE-2011-1091

Description

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.

4.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 1.49% Top 20%

Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory slackware.com Vendor Advisory redhat.com Vendor Advisory fedoraproject.org Vendor Advisory secunia.com Vendor Advisory pidgin.im

Affected: n/a n/a

References

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

Frequently Asked Questions

What is the severity of CVE-2011-1091?: CVE-2011-1091 has been scored as a medium severity vulnerability.
How to fix CVE-2011-1091?: To fix CVE-2011-1091, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1091 being actively exploited in the wild?: It is possible that CVE-2011-1091 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.