Bug 772125 (CVE-2011-3922) - CVE-2011-3922 qt: Stack-based buffer overflow in embedded harfbuzz code
Summary: CVE-2011-3922 qt: Stack-based buffer overflow in embedded harfbuzz code
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2011-3922
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 772128 805433
Blocks: 784298
TreeView+ depends on / blocked
 
Reported: 2012-01-06 04:55 UTC by Huzaifa S. Sidhpurwala
Modified: 2021-02-24 13:29 UTC (History)
9 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-06-20 14:50:03 UTC
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2012:0880 0 normal SHIPPED_LIVE Moderate: qt security and bug fix update 2012-06-19 19:50:56 UTC

Description Huzaifa S. Sidhpurwala 2012-01-06 04:55:19 UTC
A stack-based buffer overflow was found in the way harfbuzz rendered certain Tibetian font glyphs. This flaw affects qt4, which embeds the vulnerable version of harfbuzz. A remote attacker could use this flaw to crash an application (capable of loading remote web content) linked against qt.

Reference:
http://googlechromereleases.blogspot.com/2012/01/stable-channel-update.html
http://code.google.com/p/chromium/issues/detail?id=108006

Patch:
http://src.chromium.org/viewvc/chrome/branches/963/src/third_party/harfbuzz/src/harfbuzz-myanmar.c?r1=116201&r2=116200&pathrev=116201

Comment 1 Huzaifa S. Sidhpurwala 2012-01-06 05:00:48 UTC
Statement:

This issue does not affect the version of qt as shipped with Red Hat Enterprise Linux 4 and 5. This issue does not affect the version of qt3 as shipped with Red Hat Enterprise Linux 6. This issue does not affect the version of qt4 as shipped with Red Hat Enterprise Linux 5. This issue affects the version of qt as shipped with Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this issue as having moderate security impact. A future update may address this issue.

This issue does not affect the version of pango as shipped with Red Hat Enterprise Linux 4, 5 and 6.

Comment 2 Huzaifa S. Sidhpurwala 2012-01-06 05:02:09 UTC
Created qt tracking bugs for this issue

Affects: fedora-all [bug 772128]

Comment 5 errata-xmlrpc 2012-06-20 07:21:16 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2012:0880 https://rhn.redhat.com/errata/RHSA-2012-0880.html


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