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TITLE:
Pidgin Two Denial of Service Weaknesses

SECUNIA ADVISORY ID:
SA49036

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49036/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49036

RELEASE DATE:
2012-05-07

DISCUSS ADVISORY:
http://secunia.com/advisories/49036/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/49036/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=49036

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Two weaknesses have been reported in Pidgin, which can be exploited
by malicious people to cause a DoS (Denial of Service).

1) An error within SOCKS5 proxy handling code (libpurple/proxy.c) can
be exploited to dereference an invalid pointer and cause a crash by
sending multiple specially crafted file transfer requests.

Successful exploitation of this weakness requires that the victim
accepts at least one file transfer request.

2) An error within the "msn_message_parse_payload()" function
(libpurple/protocols/msn/msg.c) when handling messages with certain
characters or character encodings can be exploited to cause a crash.

The weaknesses are reported in versions prior to 2.10.4.

SOLUTION:
Update to version 2.10.4.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) José Valentín Gutiérrez
2) Fabian Yamaguchi

ORIGINAL ADVISORY:
http://www.pidgin.im/news/security/?id=62
http://www.pidgin.im/news/security/?id=63

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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