Timing attack in Mozilla Firefox - CVE-2018-12367

 

Timing attack in Mozilla Firefox - CVE-2018-12367

Published: June 27, 2018


Vulnerability identifier: #VU13489
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-12367
CWE-ID: CWE-208
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to conduct timing attack.

The weakness exists due to in the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. A remote attacker can use PerformanceNavigationTiming as a precision timer and conduct timing attack and gain access to arbitrary data.

Affected software

Mozilla Firefox
Firefox ESR
Arch Linux
Debian Linux
Gentoo Linux
Opensuse
openSUSE Leap
Mozilla Thunderbird

How to mitigate CVE-2018-12367

Update to version 61.0.

Mozilla Firefox - update to 61.0
Mozilla Thunderbird - update to 60.0

External References

Related Security Bulletins