Bug 1635452 (CVE-2018-12387) - CVE-2018-12387 Mozilla: stack out-of-bounds read in Array.prototype.push
Summary: CVE-2018-12387 Mozilla: stack out-of-bounds read in Array.prototype.push
Status: CLOSED ERRATA
Alias: CVE-2018-12387
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: impact=critical,public=20181002,repor...
Keywords: Security
Depends On: 1635173 1635174 1635175
Blocks: 1635177
TreeView+ depends on / blocked
 
Reported: 2018-10-02 23:19 UTC by Doran Moppert
Modified: 2019-06-08 23:38 UTC (History)
6 users (show)

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Clone Of:
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Last Closed: 2018-11-13 05:19:01 UTC


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2881 None None None 2018-10-08 08:26 UTC
Red Hat Product Errata RHSA-2018:2884 None None None 2018-10-08 19:54 UTC

Description Doran Moppert 2018-10-02 23:19:29 UTC
A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-24/#CVE-2018-12387

Comment 1 Doran Moppert 2018-10-02 23:19:35 UTC
Acknowledgments:

Name: the Mozilla project
Upstream: Niklas Baumstark, Bruno Keith via Beyond Security's SecuriTeam Secure Disclosure program

Comment 3 errata-xmlrpc 2018-10-08 08:26:48 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:2881 https://access.redhat.com/errata/RHSA-2018:2881

Comment 4 errata-xmlrpc 2018-10-08 19:54:47 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:2884 https://access.redhat.com/errata/RHSA-2018:2884


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