Bug 679732 (CVE-2011-0433)

Summary: CVE-2011-0433 t1lib: Heap-based buffer overflow DVI file AFM font parser
Product: [Other] Security Response Reporter: Jan Lieskovsky <jlieskov>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: huzaifas, jamatos, jskarvad, mkasik, pertusus
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-04-05 15:39:25 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 679734, 679735, 772899, 772900, 772901, 773177, 773178, 773180, 773183, 773184, 845624, 984476    
Bug Blocks: 734178    
Attachments:
Description Flags
t1lib fix none

Description Jan Lieskovsky 2011-02-23 11:18:47 UTC 
A heap-based buffer overflow flaw was found in the way AFM font file
parser, used for rendering of DVI files, in GNOME evince document viewer
and other products, processed line tokens from the given input stream. 
A remote attacker could provide a DVI file, with embedded specially-crafted 
font file, and trick the local user to open it with an application using
the AFM font parser, leading to that particular application crash or,
potentially, arbitrary code execution with the privileges of the user
running the application. Different vulnerability than CVE-2010-2642.

Upstream bug report:
[1] https://bugzilla.gnome.org/show_bug.cgi?id=640923

Upstream patch:
[2] https://bugzilla.gnome.org/show_bug.cgi?id=640923#c1
Comment 1 Jan Lieskovsky 2011-02-23 11:21:01 UTC 
This issue does not affect the versions of the evince package, as shipped
with Red Hat Enterprise Linux 5 and 6.

--

This issue does not affect the versions of the evince package, as shipped
with Fedora release of 13 and 14.
Comment 2 Jan Lieskovsky 2011-02-23 11:22:05 UTC 
This issue affects the version of the t1lib package, as shipped
with Red Hat Enterprise Linux 6.

--

This issue affects the versions of the t1lib package, as shipped
with Fedora release of 13 and 14.

This issue affects the version of the t1lib package, as present
within EPEL-5 repository.
Comment 3 Jan Lieskovsky 2011-02-23 11:23:16 UTC 
Created evince tracking bugs for this issue

Affects: fedora-all [bug 679733]
Comment 4 Jan Lieskovsky 2011-02-23 11:23:20 UTC 
Created t1lib tracking bugs for this issue

Affects: epel-5 [bug 679734]
Affects: fedora-all [bug 679735]
Comment 10 Huzaifa S. Sidhpurwala 2011-02-25 09:00:00 UTC 
evince in rhel-6 is not build with afmparse.c, due to the following code segment in tfmfile.c

#ifdef WITH_AFM_FILES
#undef TRUE
#undef FALSE
#include "afmparse.h"
#endif

Statement:

Not vulnerable. This issue did not affect the versions of evince as shipped with Red Hat Enterprise Linux 5 and 6.
Comment 11 Tomas Hoger 2011-03-04 16:09:10 UTC 
A gnome BZ bug for the off-by-one issue in the original patch:
  https://bugzilla.gnome.org/show_bug.cgi?id=643882
Comment 13 Huzaifa S. Sidhpurwala 2012-01-10 09:40:53 UTC 
Created t1lib tracking bugs for this issue

Affects: fedora-all [bug 772899]
Comment 14 Jaroslav Škarvada 2012-01-10 11:27:11 UTC 
Created attachment 551814 [details]
t1lib fix
Comment 17 errata-xmlrpc 2012-01-24 21:17:27 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:0062 https://rhn.redhat.com/errata/RHSA-2012-0062.html
Comment 18 Fedora Update System 2012-01-27 19:19:21 UTC 
t1lib-5.0.2-2 has been pushed to the Fedora EPEL 4 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 19 Fedora Update System 2012-01-27 19:21:07 UTC 
t1lib-5.1.1-9.el5 has been pushed to the Fedora EPEL 5 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 20 Fedora Update System 2012-01-28 03:23:05 UTC 
t1lib-5.1.2-9.fc16 has been pushed to the Fedora 16 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 21 Fedora Update System 2012-01-28 03:28:10 UTC 
t1lib-5.1.2-9.fc15 has been pushed to the Fedora 15 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 22 errata-xmlrpc 2012-02-15 16:20:47 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:0137 https://rhn.redhat.com/errata/RHSA-2012-0137.html
Comment 23 errata-xmlrpc 2012-08-23 14:58:16 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2012:1201 https://rhn.redhat.com/errata/RHSA-2012-1201.html
Comment 24 Tomas Hoger 2012-11-23 12:49:04 UTC 
(In reply to comment #0)
> Different vulnerability than CVE-2010-2642.

CVE-2010-2642 (bug 666318) was assigned to the overflow in the token() function.

CVE-2011-0433 was assigned to the similar issue in the linetoken() function.  Upstream commit is:

http://git.gnome.org/browse/evince/commit/?id=439c5070022e

Off-by-one issue mentioned in comment 11 was fixed in both functions via:

http://git.gnome.org/browse/evince/commit/?id=efadec4ffcdd

This problem later got CVE-2011-5244 assigned (bug 878483).
Comment 25 Tomas Hoger 2012-11-23 13:32:58 UTC 
This was previously fixed in OpenOffice.org, see bug 666318, comment 30.