PT-2011-2863 · Pidgin+1 · Pidgin+1

Published 2011-03-14 · Updated 2023-02-13 · CVE-2011-1091

Positive Technologies (AI Summary)

CVSS v2.0

4.0

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:P

Name of the Vulnerable Software and Affected Versions Pidgin versions 2.6.0 through 2.7.10

Description The issue allows remote authenticated users to cause a denial of service through malformed YMSG notification packets, resulting in a NULL pointer dereference and application crash. Additionally, it enables remote Yahoo! servers to cause a denial of service via malformed YMSG SMS messages, also leading to a NULL pointer dereference and application crash.

Recommendations For versions 2.6.0 through 2.7.10, consider disabling the libymsg.c plugin in the Yahoo! protocol until a patch is available to prevent exploitation through malformed YMSG notification packets and SMS messages.

Fix

Related Identifiers

CVE-2011-1091

OPENSUSE-SU-2024:10432-1

RHSA-2011:0616

RHSA-2011:1371

RHSA-2011_0616

RHSA-2011_1371

Affected Products

Pidgin

Red Hat

References · 33

• http://redhat.com/support/errata/RHSA-2011-1371.html · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056309.html · Vendor Advisory
• https://hermes.opensuse.org/messages/13195955 · Vendor Advisory
• http://secunia.com/advisories/43695 · Vendor Advisory
• http://redhat.com/support/errata/RHSA-2011-0616.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2011-1091 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055874.html · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2011-0616.html · Vendor Advisory
• http://pidgin.im/news/security/?id=51 · Vendor Advisory
• http://developer.pidgin.im/viewmtn/revision/diff/5cbe18129b6e7c660bc093f7e5e1414ceca17d04/with/a7c415abba1f5f01f79295337518837f73d99bb7/libpurple/protocols/yahoo/libymsg.c · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2011-1091 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2011-1091 · Vendor Advisory
• http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.466884 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2011-1091 · Vendor Advisory
• http://developer.pidgin.im/viewmtn/revision/info/a7c415abba1f5f01f79295337518837f73d99bb7 · Patch