Description
In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61.
References (11)
Core 11
Core References
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201810-01
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-15/
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1462891
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201811-13
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2018/dsa-4295
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-16/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1041193
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2018-19/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3705-1/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/104561
Scores
CVSS v3
4.3
EPSS
0.0127
EPSS Percentile
79.8%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Details
CWE
CWE-20
Status
published
Products (8)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
canonical/ubuntu_linux
17.10
canonical/ubuntu_linux
18.04
debian/debian_linux
8.0
debian/debian_linux
9.0
mozilla/firefox
< 60.1.0
mozilla/thunderbird
< 60.0
Published
Oct 18, 2018
Tracked Since
Feb 18, 2026