Bug 766446 - (CVE-2011-4603) CVE-2011-4603 pidgin: SILC remote crash on channel messages
CVE-2011-4603 pidgin: SILC remote crash on channel messages
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
: Security
Depends On: 766449 766450 766451 766454 833969
Blocks: 761529
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Reported: 2011-12-11 23:54 EST by Huzaifa S. Sidhpurwala
Modified: 2012-08-08 05:00 EDT (History)
11 users (show)

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Fixed In Version: pidgin 2.10.1
Doc Type: Bug Fix
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Last Closed: 2011-12-14 14:28:05 EST
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Description Huzaifa S. Sidhpurwala 2011-12-11 23:54:54 EST
When receiving various incoming messages, the SILC protocol plugin failed to validate that a piece of text was UTF-8. In some cases invalid UTF-8 data would lead to a crash. This vulnerability is similar to CVE-2011-3594, but occurs in a different piece of code and was fixed at a later date.

Patch: http://developer.pidgin.im/viewmtn/revision/info/afb9ede3de989f217f03d5670cca00e628bd11f1
Comment 2 Huzaifa S. Sidhpurwala 2011-12-12 00:05:59 EST
Created pidgin tracking bugs for this issue

Affects: fedora-all [bug 766454]
Comment 3 Murray McAllister 2011-12-14 00:14:37 EST

Red Hat would like to thank the Pidgin project for reporting this issue. Upstream acknowledges Diego Bauche Madero from IOActive as the original reporter.
Comment 4 errata-xmlrpc 2011-12-14 14:06:20 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4
  Red Hat Enterprise Linux 5

Via RHSA-2011:1820 https://rhn.redhat.com/errata/RHSA-2011-1820.html
Comment 5 Vincent Danen 2011-12-14 14:28:05 EST

Not vulnerable.  This issue did not affect the version of pidgin as shipped with Red Hat Enterprise Linux 6 as it explicitly disables support for the SILC protocol.
Comment 6 Fedora Update System 2012-01-05 15:54:49 EST
pidgin-2.10.1-1.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 7 Fedora Update System 2012-01-07 17:59:06 EST
pidgin-2.10.1-1.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.

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