Description
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. This vulnerability affects Firefox ESR < 52.7 and Firefox < 59.
References (11)
Core 11
Core References
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2018/dsa-4139
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201810-01
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/103388
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:0527
Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/03/msg00010.html
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-07/
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:0526
Issue Tracking, Permissions Required, Third Party Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1440775
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1040514
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3596-1/
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-06/
Scores
CVSS v3
5.9
EPSS
0.0128
EPSS Percentile
79.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-200
Status
published
Products (16)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
17.10
debian/debian_linux
7.0
debian/debian_linux
8.0
debian/debian_linux
9.0
mozilla/firefox
< 59.0
redhat/enterprise_linux_desktop
6.0
redhat/enterprise_linux_desktop
7.0
redhat/enterprise_linux_server
6.0
... and 6 more
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026