Bug 1625528 (CVE-2018-12379) - CVE-2018-12379 Mozilla: Out-of-bounds write with malicious MAR file
Summary: CVE-2018-12379 Mozilla: Out-of-bounds write with malicious MAR file
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-12379
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: 1623016 1623017 1623037 1623039 1623040 1625533 1625535 1636821
Blocks: 1623023 1636820
TreeView+ depends on / blocked
 
Reported: 2018-09-05 07:14 UTC by Doran Moppert
Modified: 2021-02-26 03:57 UTC (History)
5 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2018-11-05 11:49:45 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2692 0 None None None 2018-09-12 10:56:08 UTC
Red Hat Product Errata RHSA-2018:2693 0 None None None 2018-09-12 10:57:52 UTC
Red Hat Product Errata RHSA-2018:3403 0 None None None 2018-10-30 16:58:32 UTC
Red Hat Product Errata RHSA-2018:3458 0 None None None 2018-11-05 10:44:17 UTC

Description Doran Moppert 2018-09-05 07:14:53 UTC 
When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. 



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-21/#CVE-2018-12379
Comment 1 Doran Moppert 2018-09-05 07:14:57 UTC 
Acknowledgments:

Name: the Mozilla project
Upstream: Holger Fuhrmannek
Comment 4 errata-xmlrpc 2018-09-12 10:56:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2692 https://access.redhat.com/errata/RHSA-2018:2692
Comment 5 errata-xmlrpc 2018-09-12 10:57:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:2693 https://access.redhat.com/errata/RHSA-2018:2693
Comment 7 Doran Moppert 2018-10-09 01:58:58 UTC 
Statement:

This flaw cannot be exploited through email in Thunderbird as scripting is disabled in this for email content. It may be possible to exploit through Feeds (Atom or RSS) or other browser-like contexts.
Comment 8 errata-xmlrpc 2018-10-30 16:58:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:3403 https://access.redhat.com/errata/RHSA-2018:3403
Comment 9 errata-xmlrpc 2018-11-05 10:44:11 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3458 https://access.redhat.com/errata/RHSA-2018:3458
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