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Last updated: 10/31/2014 7:59:43 AM

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Vulnerability Summary for CVE-2011-1091

Original release date: 03/14/2011
Last revised: 11/02/2013
Source: US-CERT/NIST

Overview

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.

Description

Per: http://cwe.mitre.org/data/definitions/476.html 'CWE-476: NULL Pointer Dereference'

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.0 (MEDIUM) (AV:N/AC:L/Au:S/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: SLACKWARE
Name: SSA:2011-070-02
External Source: REDHAT
Name: RHSA-2011:0616
External Source: FEDORA
Name: FEDORA-2011-3113
External Source: REDHAT
Name: RHSA-2011:1371
External Source: VUPEN
Name: ADV-2011-0643
External Source: SECUNIA
Name: 43695
Type: Advisory
External Source: XF
Name: pidgin-yahoo-protocol-dos(66055)
External Source: BID
Name: 46837
External Source: SUSE
Name: openSUSE-SU-2012:0066
External Source: SECUNIA
Name: 43721
External Source: CONFIRM
Name: http://developer.pidgin.im/viewmtn/revision/diff/5cbe18129b6e7c660bc093f7e5e1414ceca17d04/with/a7c415abba1f5f01f79295337518837f73d99bb7/libpurple/protocols/yahoo/libymsg.c
Type: Patch Information
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=683031
External Source: OVAL
Name: oval:org.mitre.oval:def:18402
External Source: FEDORA
Name: FEDORA-2011-3150
External Source: SECUNIA
Name: 46376
External Source: VUPEN
Name: ADV-2011-0661
External Source: CONFIRM
Name: http://www.pidgin.im/news/security/?id=51
Type: Advisory; Patch Information
External Source: VUPEN
Name: ADV-2011-0703
External Source: CONFIRM
Name: http://developer.pidgin.im/viewmtn/revision/info/a7c415abba1f5f01f79295337518837f73d99bb7
Type: Patch Information
External Source: VUPEN
Name: ADV-2011-0669

Technical Details

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