Bug 572914 (CVE-2010-0827)

Summary: CVE-2010-0827 tetex, texlive: Buffer overflow flaw by processing virtual font files
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: jnovy, mjc, security-response-team, vdanen
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: 2010-05-07 08:06:04 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: 577309, 577322, 577323    
Bug Blocks:    
Attachments:
Description Flags
patch from upstream to correct the flaw
none
Updated patch from Karl Berry none

Description Jan Lieskovsky 2010-03-12 10:34:43 UTC 
Dan Rosenberg found a buffer overflow flaw in the way
TeX text formatting system processed virtual font files.
If a user was tricked into processing a specially-crafted
typesetter-independent .dvi (DeVice Independent) file,
it could lead to dvips executable crash or, potentially,
to arbitrary code execution with the privileges of the user
running dvips.
Comment 1 Jan Lieskovsky 2010-03-12 10:36:49 UTC 
This issue affects with limited impact the versions of
the tetex package, as shipped with Red Hat Enterprise Linux 3
By processing specially-crafted DVI file this version of
tetex launches the "emergency stop" trigger, which prevents
the denial of service (dvips crash).

This issue affects the version of the tetex package, as shipped
with Red Hat Enterprise Linux 4.

This issue does NOT affect the version of the tetex package,
as shipped with Red Hat Enterprise Linux 5 due to applied
FORTIFY SOURCE protection, which detects the attack and
terminates the particular process prior it can do something
harmful.

This issue does NOT affect the versions of the texlive package,
as shipped with Fedora release of 11 and 12 due to applied
FORTIFY SOURCE protection.

For further information regarding FORTIFY SOURCE feature,
please proceed to:
  [1] http://www.redhat.com/magazine/009jul05/features/execshield/#checks
Comment 4 Vincent Danen 2010-03-15 15:43:26 UTC 
Created attachment 400247 [details]
patch from upstream to correct the flaw

Upstream patch from Karl Berry to correct this flaw.
Comment 10 Jan Lieskovsky 2010-04-13 12:43:50 UTC 
Created attachment 406226 [details]
Updated patch from Karl Berry
Comment 12 Jan Lieskovsky 2010-04-22 12:25:25 UTC 
Public via:
  [1] http://security-tracker.debian.org/tracker/CVE-2010-0827
  [2] http://www.tug.org/svn/texlive/trunk/Build/source/texk/dvipsk/ChangeLog?view=log
Comment 13 errata-xmlrpc 2010-05-06 18:54:01 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2010:0399 https://rhn.redhat.com/errata/RHSA-2010-0399.html
Comment 14 errata-xmlrpc 2010-05-06 19:10:44 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 3

Via RHSA-2010:0401 https://rhn.redhat.com/errata/RHSA-2010-0401.html
Comment 15 Tomas Hoger 2010-05-10 09:06:19 UTC 
Upstream commit:
  http://www.tug.org/svn/texlive?view=revision&revision=17560