CVE-2018-12367

MEDIUM

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

http://www.securityfocus.com/bid/104561

http://www.securitytracker.com/id/1041193

https://bugzilla.mozilla.org/show_bug.cgi?id=1462891

https://lists.debian.org/debian-lts-announce/2018/11/msg00011.html

https://security.gentoo.org/glsa/201810-01

https://security.gentoo.org/glsa/201811-13

https://usn.ubuntu.com/3705-1/

https://www.debian.org/security/2018/dsa-4295

https://www.mozilla.org/security/advisories/mfsa2018-15/

https://www.mozilla.org/security/advisories/mfsa2018-16/

https://www.mozilla.org/security/advisories/mfsa2018-19/

Details

Source: MITRE

Published: 2018-10-18

Updated: 2018-12-06

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 2.8

Severity: MEDIUM