Bug 1555131 – CVE-2018-5131 Mozilla: Fetch API improperly returns cached copies of no-store/no-cache resources (MFSA 2018-07)

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Bug 1555131 - (CVE-2018-5131) CVE-2018-5131 Mozilla: Fetch API improperly returns cached copies of no-store/no-cache resources (MFSA 2018-07)

Summary:	CVE-2018-5131 Mozilla: Fetch API improperly returns cached copies of no-store...

Status:	CLOSED ERRATA

Aliases:	CVE-2018-5131

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

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

URL:
Whiteboard:	impact=moderate,public=20180314,repor...
Keywords:	Security

Depends On:	1551856 1551857 1551858 1551859
Blocks:	1551854
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Reported:	2018-03-13 22:04 EDT by Doran Moppert
Modified:	2018-06-19 20:53 EDT (History)
CC List:	5 users (show)

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Last Closed:	2018-06-19 20:53:42 EDT
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:0526	None	None	None	2018-03-15 06:32 EDT
Red Hat Product Errata	RHSA-2018:0527	None	None	None	2018-03-15 07:20 EDT

Groups: None (edit)

Description Doran Moppert 2018-03-13 22:04:17 EDT

Under certain circumstances the `fetch()` API can return transient local copies of resources that were sent with a `no-store` or `no-cache` cache header instead of downloading a copy from the network as it should. This can result in previously stored, locally cached data of a website being accessible to users if they share a common profile while browsing.



External Reference:

https://www.mozilla.org/en-US/security/advisories/mfsa2018-07/#CVE-2018-5131

Comment 1 Doran Moppert 2018-03-13 22:04:23 EDT

Acknowledgments:

Name: the Mozilla project
Upstream: Ben Kelly

Comment 2 errata-xmlrpc 2018-03-15 06:31:59 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2018:0526 https://access.redhat.com/errata/RHSA-2018:0526

Comment 3 errata-xmlrpc 2018-03-15 07:20:54 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0527 https://access.redhat.com/errata/RHSA-2018:0527

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