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Vulnerability Details : CVE-2011-4601

family_feedbag.c in the oscar protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial of service (application crash) via a crafted (1) AIM or (2) ICQ message associated with buddy-list addition.
Publish Date : 2011-12-24 Last Update Date : 2017-09-18
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
AV:N/AC:L/Au:N/C:N/I:N/A:P 2011-12-06 2011-12-10
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-4601 unix
DEPRECATED: ELSA-2011-1821 -- pidgin security update (moderate) oval:org.mitre.oval:def:27978 unix
ELSA-2011:1820: pidgin security update (Moderate) oval:org.mitre.oval:def:23420 unix
ELSA-2011:1821: pidgin security update (Moderate) oval:org.mitre.oval:def:23629 unix
family_feedbag.c in the oscar protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 v... oval:org.mitre.oval:def:18408 windows
RHSA-2011:1820: pidgin security update (Moderate) oval:com.redhat.rhsa:def:20111820 unix
RHSA-2011:1820: pidgin security update (Moderate) oval:org.mitre.oval:def:21567 unix
RHSA-2011:1821: pidgin security update (Moderate) oval:com.redhat.rhsa:def:20111821 unix
RHSA-2011:1821: pidgin security update (Moderate) oval:org.mitre.oval:def:21879 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-4601

# Product Type Vendor Product Version Update Edition Language
1 Application Pidgin Pidgin 2.0.0 Version Details Vulnerabilities
2 Application Pidgin Pidgin 2.0.1 Version Details Vulnerabilities
3 Application Pidgin Pidgin 2.0.2 Version Details Vulnerabilities
4 Application Pidgin Pidgin 2.1.0 Version Details Vulnerabilities
5 Application Pidgin Pidgin 2.1.1 Version Details Vulnerabilities
6 Application Pidgin Pidgin 2.2.0 Version Details Vulnerabilities
7 Application Pidgin Pidgin 2.2.1 Version Details Vulnerabilities
8 Application Pidgin Pidgin 2.2.2 Version Details Vulnerabilities
9 Application Pidgin Pidgin 2.3.0 Version Details Vulnerabilities
10 Application Pidgin Pidgin 2.3.1 Version Details Vulnerabilities
11 Application Pidgin Pidgin 2.4.0 Version Details Vulnerabilities
12 Application Pidgin Pidgin 2.4.1 Version Details Vulnerabilities
13 Application Pidgin Pidgin 2.4.2 Version Details Vulnerabilities
14 Application Pidgin Pidgin 2.4.3 Version Details Vulnerabilities
15 Application Pidgin Pidgin 2.5.0 Version Details Vulnerabilities
16 Application Pidgin Pidgin 2.5.1 Version Details Vulnerabilities
17 Application Pidgin Pidgin 2.5.2 Version Details Vulnerabilities
18 Application Pidgin Pidgin 2.5.3 Version Details Vulnerabilities
19 Application Pidgin Pidgin 2.5.4 Version Details Vulnerabilities
20 Application Pidgin Pidgin 2.5.5 Version Details Vulnerabilities
21 Application Pidgin Pidgin 2.5.6 Version Details Vulnerabilities
22 Application Pidgin Pidgin 2.5.7 Version Details Vulnerabilities
23 Application Pidgin Pidgin 2.5.8 Version Details Vulnerabilities
24 Application Pidgin Pidgin 2.5.9 Version Details Vulnerabilities
25 Application Pidgin Pidgin 2.6.0 Version Details Vulnerabilities
26 Application Pidgin Pidgin 2.6.1 Version Details Vulnerabilities
27 Application Pidgin Pidgin 2.6.2 Version Details Vulnerabilities
28 Application Pidgin Pidgin 2.6.3 Version Details Vulnerabilities
29 Application Pidgin Pidgin 2.6.4 Version Details Vulnerabilities
30 Application Pidgin Pidgin 2.6.5 Version Details Vulnerabilities
31 Application Pidgin Pidgin 2.6.6 Version Details Vulnerabilities
32 Application Pidgin Pidgin 2.7.1 Version Details Vulnerabilities
33 Application Pidgin Pidgin 2.7.2 Version Details Vulnerabilities
34 Application Pidgin Pidgin 2.7.3 Version Details Vulnerabilities
35 Application Pidgin Pidgin 2.7.4 Version Details Vulnerabilities
36 Application Pidgin Pidgin 2.7.5 Version Details Vulnerabilities
37 Application Pidgin Pidgin 2.7.6 Version Details Vulnerabilities
38 Application Pidgin Pidgin 2.7.7 Version Details Vulnerabilities
39 Application Pidgin Pidgin 2.7.8 Version Details Vulnerabilities
40 Application Pidgin Pidgin 2.7.9 Version Details Vulnerabilities
41 Application Pidgin Pidgin 2.7.10 Version Details Vulnerabilities
42 Application Pidgin Pidgin 2.7.11 Version Details Vulnerabilities
43 Application Pidgin Pidgin 2.8.0 Version Details Vulnerabilities
44 Application Pidgin Pidgin 2.9.0 Version Details Vulnerabilities
45 Application Pidgin Pidgin 2.10.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Pidgin Pidgin 45

- References For CVE-2011-4601
BID 51010 Pidgin OSCAR Protocol UTF-8 Message Denial of Service Vulnerability Release Date:2012-09-25
SUSE openSUSE-SU-2012:0066
REDHAT RHSA-2011:1821
MLIST [oss-security] 20111209 CVE request: Pidgin crash
MLIST [oss-security] 20111210 Re: CVE request: Pidgin crash CONFIRM CONFIRM

- Metasploit Modules Related To CVE-2011-4601

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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