ASA-2019-00434 – Mozilla Firefox: NeckoChild can trigger crash when accessed off of main thread


Allele Security Alert

ASA-2019-00434

Identifier(s)

ASA-2019-00434, CVE-2019-11714, MFSA2019-21

Title

NeckoChild can trigger crash when accessed off of main thread

Vendor(s)

Mozilla

Product(s)

Mozilla Firefox

Affected version(s)

Mozilla Firefox version before 68

Fixed version(s)

Mozilla Firefox version 68

Proof of concept

Unknown

Description

Necko can access a child on the wrong thread during UDP connections, resulting in a potentially exploitable crash in some instances.

Technical details

Unknown

Credits

Hanno Böck

Reference(s)

Mozilla Foundation Security Advisory 2019-21
https://www.mozilla.org/en-US/security/advisories/mfsa2019-21/#CVE-2019-11714

Bug 1542593
https://bugzilla.mozilla.org/show_bug.cgi?id=1542593

CVE-2019-11714
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11714

CVE-2019-11714
https://nvd.nist.gov/vuln/detail/CVE-2019-11714

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Last modified: July 17, 2019

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