CVE-2018-3620

Description

Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access via a terminal page fault and a side-channel analysis.

How to fix CVE-2018-3620

To remediate CVE-2018-3620, upgrade the affected package to a fixed version below.

• Alpine/xen—upgrade to 4.11.1-r0 or later
• —upgrade to 3.20180703.1 or later
• —upgrade to 4.17.15-1 or later
• —upgrade to 4.9.110-3+deb9u3 or later
• —upgrade to 4.9.110-3+deb9u4~deb8u1 or later
• —upgrade to 4.11.1~pre.20180911.5acdd26fdc+dfsg-2 or later

Is CVE-2018-3620 being exploited?

Low — EPSS is 2.3%, meaning exploitation activity has not been observed at scale.

Affected packages (6)

• from 0, < 4.11.1-r0
• from 0, < 3.20180703.1
• from 0, < 4.17.15-1
• from 0, < 4.9.110-3+deb9u3
• from 0, < 4.9.110-3+deb9u4~deb8u1
• from 0, < 4.11.1~pre.20180911.5acdd26fdc+dfsg-2

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2018-3620
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2018-3620