Bug 856743 (CVE-2012-4415) - CVE-2012-4415 libguac: Stack-based buffer overflow by protocol handling in guac client plug-in
Summary: CVE-2012-4415 libguac: Stack-based buffer overflow by protocol handling in gu...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2012-4415
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 856746 856747
Blocks:
TreeView+ depends on / blocked
 
Reported: 2012-09-12 17:42 UTC by Jan Lieskovsky
Modified: 2019-09-29 12:55 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-10-03 07:06:28 UTC
Embargoed:

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Description Jan Lieskovsky 2012-09-12 17:42:24 UTC 
A stack based buffer overflow flaw was found in guac client plug-in protocol handling functionality of libguac, a common library used by all C components of Guacamole. A remote attacker could provide a specially-crafted protocol specification to the guac client plug-in that, when processed would lead to guac client crash (denial of service).

References:
[1] http://www.openwall.com/lists/oss-security/2012/09/11/3
[2] http://www.openwall.com/lists/oss-security/2012/09/11/7

Upstream patch:
[3] http://guac-dev.org/trac/changeset/7dcefa744b4a38825619c00ae8b47e5bae6e38c0/libguac
Comment 1 Jan Lieskovsky 2012-09-12 17:45:21 UTC 
This issue affects the versions of the libguac package, as shipped with Fedora release of 16 and 17. Please schedule an update.

--

This issue affects the version of the libguac package, as shipped with Fedora EPEL 6. Please schedule an update.
Comment 2 Jan Lieskovsky 2012-09-12 17:46:19 UTC 
Created libguac tracking bugs for this issue

Affects: fedora-all [bug 856746]
Affects: epel-6 [bug 856747]
Comment 3 Fedora Update System 2012-09-24 03:23:34 UTC 
libguac-0.6.3-1.fc18, libguac-client-vnc-0.6.0-8.fc18, libguac-client-rdp-0.6.1-2.fc18, guacd-0.6.1-3.fc18, guacamole-common-0.6.1-2.fc18, guacamole-ext-0.6.1-2.fc18, guacamole-common-js-0.6.1-2.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2012-09-26 08:52:13 UTC 
libguac-0.6.3-1.fc17, libguac-client-vnc-0.6.0-8.fc17, libguac-client-rdp-0.6.1-2.fc17, guacd-0.6.1-3.fc17, guacamole-common-0.6.1-2.fc17, guacamole-ext-0.6.1-2.fc17, guacamole-common-js-0.6.1-2.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2012-09-26 09:10:23 UTC 
libguac-0.6.3-1.fc16, libguac-client-vnc-0.6.0-8.fc16, guacd-0.6.1-3.fc16, guacamole-common-0.6.1-2.fc16, guacamole-ext-0.6.1-2.fc16, guacamole-common-js-0.6.1-2.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.
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