Bug 1014561 (CVE-2013-4396) - CVE-2013-4396 xorg-x11-server: use-after-free flaw when handling ImageText requests
Summary: CVE-2013-4396 xorg-x11-server: use-after-free flaw when handling ImageText re...
Alias: CVE-2013-4396
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1015161 1016412 1017013 1017521 1017522 1017523
Blocks: 974906 1014570
TreeView+ depends on / blocked
Reported: 2013-10-02 10:56 UTC by Murray McAllister
Modified: 2023-05-12 17:41 UTC (History)
8 users (show)

Fixed In Version: xorg-x11-server 1.15.0, xorg-x11-server 1.14.4
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2013-11-22 06:18:06 UTC

Attachments (Terms of Use)
upstream patch (2.73 KB, patch)
2013-10-02 16:26 UTC, Vincent Danen
no flags Details | Diff

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2013:1426 0 normal SHIPPED_LIVE Important: xorg-x11-server security update 2013-10-15 22:37:02 UTC

Description Murray McAllister 2013-10-02 10:56:30 UTC
X.Org is an open source implementation of the X Window System. A use-after-free flaw was found in the way the X.Org server handled ImageText requests. A malicious, authorized client could use this flaw to crash the X.Org server or, potentially, execute arbitrary code with root privileges.

Comment 1 Vincent Danen 2013-10-02 16:26:34 UTC
Created attachment 806554 [details]
upstream patch

Comment 3 Vincent Danen 2013-10-02 16:29:09 UTC

Red Hat would like to thank the X.Org security team for reporting this issue. Upstream acknowledges Pedro Ribeiro as the original reporter.

Comment 7 Vincent Danen 2013-10-08 22:12:34 UTC
This is now public:


Comment 8 Huzaifa S. Sidhpurwala 2013-10-09 07:11:41 UTC
Created xorg-x11-server tracking bugs for this issue:

Affects: fedora-all [bug 1017013]

Comment 9 Huzaifa S. Sidhpurwala 2013-10-10 05:42:12 UTC


Comment 11 errata-xmlrpc 2013-10-15 18:41:20 UTC
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5

Via RHSA-2013:1426 https://rhn.redhat.com/errata/RHSA-2013-1426.html

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