Bug 1236953 (CVE-2015-2731) - CVE-2015-2731 Mozilla: Use-after-free in Content Policy due to microtask execution error (MFSA 2015-63)
Summary: CVE-2015-2731 Mozilla: Use-after-free in Content Policy due to microtask exec...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-2731
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1235754
TreeView+ depends on / blocked
 
Reported: 2015-06-30 05:02 UTC by Huzaifa S. Sidhpurwala
Modified: 2021-02-17 05:10 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-07-20 17:53:33 UTC


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:1207 0 normal SHIPPED_LIVE Critical: firefox security update 2015-07-03 09:12:10 UTC
Red Hat Product Errata RHSA-2015:1455 0 normal SHIPPED_LIVE Important: thunderbird security update 2015-07-20 20:34:40 UTC

Description Huzaifa S. Sidhpurwala 2015-06-30 05:02:42 UTC
Security researcher Herre reported a use-after-free vulnerability when a Content Policy modifies the Document Object Model to remove a DOM object, which is then used afterwards due to an error in microtask implementation. This leads to an exploitable crash.

In general this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled, but is potentially a risk in browser or browser-like contexts.


External Reference:

http://www.mozilla.org/security/announce/2015/mfsa2015-63.html


Acknowledgements:

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Herre as the original reporter.

Comment 1 errata-xmlrpc 2015-07-03 05:13:25 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7
  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5

Via RHSA-2015:1207 https://rhn.redhat.com/errata/RHSA-2015-1207.html

Comment 2 errata-xmlrpc 2015-07-20 16:35:50 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 5
  Red Hat Enterprise Linux 7

Via RHSA-2015:1455 https://rhn.redhat.com/errata/RHSA-2015-1455.html


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