Bug 1496649 – CVE-2017-7793 Mozilla: Use-after-free with Fetch API (MFSA 2017-22)

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Bug 1496649 - (CVE-2017-7793) CVE-2017-7793 Mozilla: Use-after-free with Fetch API (MFSA 2017-22)

Summary:	CVE-2017-7793 Mozilla: Use-after-free with Fetch API (MFSA 2017-22)

Status:	CLOSED ERRATA

Aliases:	CVE-2017-7793

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=important,public=20170928,repo...
Keywords:	Security

Depends On:
Blocks:	1494903
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Reported:	2017-09-28 00:19 EDT by Doran Moppert
Modified:	2017-10-11 19:51 EDT (History)
CC List:	5 users (show)

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Last Closed:	2017-10-11 19:51:23 EDT
Type:	---
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:2831	normal	SHIPPED_LIVE	Critical: firefox security update	2017-09-28 23:47:43 EDT
Red Hat Product Errata	RHSA-2017:2885	normal	SHIPPED_LIVE	Important: thunderbird security update	2017-10-11 23:40:10 EDT

Groups: None (edit)

Description Doran Moppert 2017-09-28 00:19:47 EDT

A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash.


External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/#CVE-2017-7793

Comment 2 Doran Moppert 2017-09-28 01:00:36 EDT

Acknowledgments:

Name: the Mozilla project
Upstream: Abhishek Arya

Comment 3 Tomas Hoger 2017-09-28 14:45:15 EDT

Public now via upstream advisories:

https://www.mozilla.org/en-US/security/advisories/mfsa2017-22/
https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/

Comment 4 errata-xmlrpc 2017-09-28 19:48:15 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2831 https://access.redhat.com/errata/RHSA-2017:2831

Comment 5 errata-xmlrpc 2017-10-11 19:40:42 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:2885 https://access.redhat.com/errata/RHSA-2017:2885

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