Bug 991685 (CVE-2016-2377) - VUL-0: CVE-2016-2377: pidgin: MXIT HTTP Content-Length Buffer Overflow Vulnerability
Summary: VUL-0: CVE-2016-2377: pidgin: MXIT HTTP Content-Length Buffer Overflow Vulner...
Status: RESOLVED WONTFIX
Alias: CVE-2016-2377
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Major
Target Milestone: ---
Assignee: Felix Zhang
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/170403/
Whiteboard: CVSSv2:RedHat:CVE-2016-2377:5.1:(AV:N...
Keywords:
Depends on:
Blocks:
 
Reported: 2016-08-02 11:47 UTC by Marcus Meissner
Modified: 2018-06-11 14:45 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Marcus Meissner 2016-08-02 11:47:31 UTC 
rh#1348852

A buffer vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent by the server could potentially result in an out of bounds write of one byte. A malicious server can send a negative content-length in response to a HTTP request triggering the vulnerability.

External references:

http://www.talosintel.com/reports/TALOS-2016-0119/
http://www.pidgin.im/news/security/?id=93

Upstream fix:

https://bitbucket.org/pidgin/main/commits/0f94ef13ab37
Comment 1 Marcus Meissner 2016-08-02 11:48:45 UTC 
problematic code is in both sle11 and sle12.
Comment 2 Swamp Workflow Management 2016-08-02 22:01:00 UTC 
bugbot adjusting priority
Comment 4 Felix Zhang 2018-06-11 13:43:19 UTC 
With Mxit officially shut down its services in 2016 and pidgin dropped support to the protocol since 2.12. Efforts to backport the fix won't make much sense.
Discussed with Johannes and decided to close this as WONTFIX.