Bug 1764438 (CVE-2019-11757)

Summary:	CVE-2019-11757 Mozilla: Use-after-free when creating index updates in IndexedDB
Product:	[Other] Security Response	Reporter:	Doran Moppert <dmoppert>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	cschalle, gecko-bugs-nobody, jhorak, security-response-team, stransky
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	firefox 68.2, thunderbird 68.2	Doc Type:	If docs needed, set a value
Doc Text:	A use-after-free flaw was found in Mozilla Firefox and Thunderbird. When following a value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. An attacker could use this flaw to execute code that was stored in the referenced memory or crash the system.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-10-25 00:51:28 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1763558, 1763559, 1763560, 1763561, 1763562, 1763563, 1764206, 1764937, 1764938, 1764939, 1764940, 1764941, 1764942
Bug Blocks:	1763556

Description Doran Moppert 2019-10-23 05:39:52 UTC

When following the value's prototype chain, it was possible to retain a reference to a locale, delete it, and subsequently reference it. This resulted in a use-after-free and a potentially exploitable crash.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2019-33/#CVE-2019-11757

Comment 1 Doran Moppert 2019-10-23 05:39:54 UTC

Acknowledgments:

Name: the Mozilla project
Upstream: Zhanjia Song

Comment 2 errata-xmlrpc 2019-10-23 14:00:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:3193 https://access.redhat.com/errata/RHSA-2019:3193

Comment 3 errata-xmlrpc 2019-10-24 08:24:42 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3196 https://access.redhat.com/errata/RHSA-2019:3196

Comment 4 Product Security DevOps Team 2019-10-25 00:51:28 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-11757

Comment 5 errata-xmlrpc 2019-10-29 09:49:00 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:3210 https://access.redhat.com/errata/RHSA-2019:3210

Comment 6 errata-xmlrpc 2019-10-29 13:46:57 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3237 https://access.redhat.com/errata/RHSA-2019:3237

Comment 7 errata-xmlrpc 2019-10-31 14:08:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:3281 https://access.redhat.com/errata/RHSA-2019:3281

Comment 8 errata-xmlrpc 2019-11-06 17:08:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2019:3756 https://access.redhat.com/errata/RHSA-2019:3756