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Fencer Intel
medium 5.5

CVE-2020-8695 json

Observable discrepancy in the RAPL interface for some Intel(R) Processors may allow a privileged user to potentially enable information dis…

published 5y ago modified 4mo ago also EUVD-2020-29543

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits
0
none known

Summary

Observable discrepancy in the RAPL interface for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

Patch / fix

  • intel-microcode Debian 14, Debian 13, Debian 12 3.20201110.1

debian advisories DEBIAN-CVE-2020-8695

  • intel-microcode Ubuntu 16.04 LTS 3.20201110.0ubuntu0.16.04.1
  • intel-microcode Ubuntu 18.04 LTS 3.20210216.0ubuntu0.18.04.1
  • intel-microcode Ubuntu 20.04 LTS 3.20210216.0ubuntu0.20.04.1
  • intel-microcode Ubuntu Pro 14.04 LTS 3.20201110.0ubuntu0.14.04.1

ubuntu advisories UBUNTU-CVE-2020-8695

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • microcode_ctl RHEL 7 2:2.1-73.11.el7_9
  • microcode_ctl RHEL 8 4:20210216-1.20210608.1.el8_4
  • microcode_ctl RHEL 8 4:20200609-2.20201027.1.el8_3
  • microcode_ctl RHEL 7 2:2.1-73.2.el7_9
  • microcode_ctl RHEL 7.3 AUS 2:2.1-16.42.el7_3
  • microcode_ctl RHEL 7.2 AUS 2:2.1-12.39.el7_2
  • microcode_ctl RHEL 7.6 TUS, RHEL 7.6 E4S, RHEL 7.6 AUS 2:2.1-47.23.el7_6
  • microcode_ctl RHEL 8.2 EUS 4:20191115-4.20210608.1.el8_2

red hat advisories RHSA-2021:3322RHSA-2021:3323RHSA-2021:3317RHSA-2021:3364RHSA-2021:3255RHSA-2021:3176

  • docker-stable SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +12 more 24.0.9_ce-150000.1.25.1
  • rootlesskit SLE Module for Containers 15 SP5, SLE Module for Containers 15 SP4, openSUSE Leap 15.5 +1 more 1.1.1-150000.1.3.3
  • docker SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES for SAP 15 SP1 +19 more 24.0.7_ce-150000.190.4
  • runc SLE Module for Containers 12 1.1.10-16.40.1
  • docker SLE Module for Containers 12 24.0.7_ce-98.103.1
  • containerd SLE Module for Containers 12 1.7.8-16.88.1
  • kernel-azure SLE Module for Public Cloud 15 SP2 5.3.18-18.29.1
  • kernel-syms-azure SLE Module for Public Cloud 15 SP2 5.3.18-18.29.1

suse advisories SUSE-SU-2025:03545-1SUSE-SU-2025:03540-1SUSE-SU-2023:4936-1SUSE-SU-2023:4625-1SUSE-SU-2020:3713-1SUSE-SU-2020:3514-1

  • docker-stable openSUSE Tumbleweed 24.0.9_ce-15.1
  • ucode-intel openSUSE Tumbleweed 20210608-1.2
  • docker openSUSE Tumbleweed 24.0.7_ce-2.1
  • ucode-intel openSUSE Leap 15.1 20201118-lp151.2.33.1
  • ucode-intel openSUSE Leap 15.2 20201118-lp152.2.8.1

opensuse advisories openSUSE-SU-2025:15589-1openSUSE-SU-2024:11478-1openSUSE-SU-2024:13469-1openSUSE-SU-2020:2098-1openSUSE-SU-2020:2075-1

  • microcode_ctl Rocky Linux 8 4:20210216-1.20210608.1.el8_4

rocky linux advisories RLSA-2021:3027

Is CVE-2020-8695 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-8695 updated cvss 5.1

hw: Information disclosure issue in Intel SGX via RAPL interface

  • Red Hat Enterprise Linux BaseOS (v. 8) microcode_ctl 20200609-2.20201027.1.el8_3, microcode_ctl 20210216-1.20210608.1.el8_4
    fixed: vendor fix RHSA-2020:5085
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.0) microcode_ctl 20180807a-2.20201112.1.el8_0
    fixed: vendor fix RHSA-2020:5186
  • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) microcode_ctl 20190618-1.20201112.1.el8_1, microcode_ctl 20190618-1.20210608.1.el8_1
    fixed: vendor fix RHSA-2020:5369
  • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) microcode_ctl 20191115-4.20201112.1.el8_2, microcode_ctl 20191115-4.20210608.1.el8_2
    fixed: vendor fix RHSA-2020:5185
  • Red Hat Enterprise Linux Client (v. 7) microcode_ctl 2.1-73.2.el7_9, microcode_ctl 2.1-73.11.el7_9
    fixed: vendor fix RHSA-2021:3028
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) microcode_ctl 2.1-47.18.el7_6
    fixed: vendor fix RHSA-2020:5181
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) microcode_ctl 2.1-53.13.el7_7, microcode_ctl 2.1-53.18.el7_7
    fixed: vendor fix RHSA-2020:5190
  • Red Hat Enterprise Linux Server (v. 7) microcode_ctl 2.1-73.2.el7_9, microcode_ctl 2.1-73.11.el7_9
    fixed: vendor fix RHSA-2021:3028
show 14 more
  • Red Hat Enterprise Linux Server AUS (v. 7.2) microcode_ctl 2.1-12.34.el7_2, microcode_ctl 2.1-12.39.el7_2
    fixed: vendor fix RHSA-2020:5188
  • Red Hat Enterprise Linux Server AUS (v. 7.3) microcode_ctl 2.1-16.37.el7_3, microcode_ctl 2.1-16.42.el7_3
    fixed: vendor fix RHSA-2020:5183
  • Red Hat Enterprise Linux Server AUS (v. 7.4) microcode_ctl 2.1-22.36.el7_4, microcode_ctl 2.1-22.41.el7_4
    fixed: vendor fix RHSA-2020:5182
  • Red Hat Enterprise Linux Server AUS (v. 7.6) microcode_ctl 2.1-47.23.el7_6
    fixed: vendor fix RHSA-2021:3317
  • Red Hat Enterprise Linux Server E4S (v. 7.3) microcode_ctl 2.1-16.37.el7_3
    fixed: vendor fix RHSA-2020:5183
  • Red Hat Enterprise Linux Server E4S (v. 7.4) microcode_ctl 2.1-22.36.el7_4, microcode_ctl 2.1-22.41.el7_4
    fixed: vendor fix RHSA-2020:5182
  • Red Hat Enterprise Linux Server E4S (v. 7.6) microcode_ctl 2.1-47.23.el7_6
    fixed: vendor fix RHSA-2021:3317
  • Red Hat Enterprise Linux Server EUS (v. 7.6) microcode_ctl 2.1-47.18.el7_6
    fixed: vendor fix RHSA-2020:5181
  • Red Hat Enterprise Linux Server EUS (v. 7.7) microcode_ctl 2.1-53.13.el7_7, microcode_ctl 2.1-53.18.el7_7
    fixed: vendor fix RHSA-2020:5190
  • Red Hat Enterprise Linux Server TUS (v. 7.3) microcode_ctl 2.1-16.37.el7_3
    fixed: vendor fix RHSA-2020:5183
  • Red Hat Enterprise Linux Server TUS (v. 7.4) microcode_ctl 2.1-22.36.el7_4, microcode_ctl 2.1-22.41.el7_4
    fixed: vendor fix RHSA-2020:5182
  • Red Hat Enterprise Linux Server TUS (v. 7.6) microcode_ctl 2.1-47.23.el7_6
    fixed: vendor fix RHSA-2021:3317
  • Red Hat Enterprise Linux Workstation (v. 7) microcode_ctl 2.1-73.2.el7_9, microcode_ctl 2.1-73.11.el7_9
    fixed: vendor fix RHSA-2021:3028
  • Red Hat Enterprise Linux 5 microcode_ctl Red Hat Enterprise Linux 6 microcode_ctl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a Intel(R) Processors

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.