CVE-2022-26373

medium

Published 2022-11-15 · Modified 2022-11-12

CVSS v3

—

CVSS v2

—

VIR risk

5.5

Description

Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: alma — https://errata.almalinux.org/8/ALSA-2022-7444.html

vendor Authored 2026-05-27

Vendor advisory: alma — https://access.redhat.com/errata/RHSA-2022:7444

vendor Authored 2026-05-27

Vendor advisory: alma — https://errata.almalinux.org/9/ALSA-2022-8267.html

vendor Authored 2026-05-27

Vendor advisory: alma — https://errata.almalinux.org/8/ALSA-2022-7683.html

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2120175

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2112693

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2096178

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2070220

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2069408

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2062284

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/1946279

vendor Authored 2026-05-27

Vendor advisory: alma — https://access.redhat.com/errata/RHSA-2022:7683

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-26373

vendor Authored 2026-05-27

Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2022:7444

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2022-26373.html

vendor Authored 2026-05-27

Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2022:7683

vendor Authored 2026-05-27

Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2022:8267

vendor Authored 2026-05-27

Vendor advisory: alma — https://errata.almalinux.org/9/ALSA-2022-7933.html

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2129152

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2123695

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2115278

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2115065

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2114878

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2103153

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2103148

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2090241

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2090240

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2090237

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2090226

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2089815

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2088021

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2084479

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2084183

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2084125

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2074208

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2073064

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2071022

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2070205

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2066819

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2066706

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2066614

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2059928

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2058395

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2053632

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2052312

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2051444

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2037386

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/1980646

vendor Authored 2026-05-27

Vendor advisory: redhat — https://access.redhat.com/errata/RHSA-2022:7933

Mitigation details

Source: Red Hat Errata — Red Hat Inc. · View original ↗ · Open-Errata-API

Description hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions CVSS v3: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N) Errata / fixed releases ProductPackageAdvisoryReleased Red Hat Enterprise Linux 7kernel-rt-0:3.10.0-1160.80.1.rt56.1225.el7RHSA-2022:73382022-11-02T00:00:00Z Red Hat Enterprise Linux 7kernel-0:3.10.0-1160.80.1.el7RHSA-2022:73372022-11-02T00:00:00Z Red Hat Enterprise…

Description

hw: cpu: Intel: Post-barrier Return Stack Buffer Predictions

CVSS v3: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

Errata / fixed releases

Product	Package	Advisory	Released
Red Hat Enterprise Linux 7	`kernel-rt-0:3.10.0-1160.80.1.rt56.1225.el7`	RHSA-2022:7338	2022-11-02T00:00:00Z
Red Hat Enterprise Linux 7	`kernel-0:3.10.0-1160.80.1.el7`	RHSA-2022:7337	2022-11-02T00:00:00Z
Red Hat Enterprise Linux 8	`kernel-rt-0:4.18.0-425.3.1.rt7.213.el8`	RHSA-2022:7444	2022-11-08T00:00:00Z
Red Hat Enterprise Linux 8	`kernel-0:4.18.0-425.3.1.el8`	RHSA-2022:7683	2022-11-08T00:00:00Z
Red Hat Enterprise Linux 8.6 Extended Update Support	`kernel-0:4.18.0-372.41.1.el8_6`	RHSA-2023:0440	2023-01-24T00:00:00Z
Red Hat Enterprise Linux 9	`kernel-0:5.14.0-162.6.1.el9_1`	RHSA-2022:8267	2022-11-15T00:00:00Z
Red Hat Enterprise Linux 9	`kernel-rt-0:5.14.0-162.6.1.rt21.168.el9_1`	RHSA-2022:7933	2022-11-15T00:00:00Z
Red Hat Enterprise Linux 9	`kernel-0:5.14.0-162.6.1.el9_1`	RHSA-2022:8267	2022-11-15T00:00:00Z
Red Hat Enterprise Linux 9.0 Extended Update Support	`kernel-0:5.14.0-70.36.1.el9_0`	RHSA-2022:8973	2022-12-13T00:00:00Z
Red Hat Enterprise Linux 9.0 Extended Update Support	`kernel-rt-0:5.14.0-70.36.1.rt21.108.el9_0`	RHSA-2022:8974	2022-12-13T00:00:00Z
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8	`kernel-0:4.18.0-372.41.1.el8_6`	RHSA-2023:0440	2023-01-24T00:00:00Z

Package state

Product	Package	State
Red Hat Enterprise Linux 6	`kernel`	Will not fix

Apply commands

bash fix

Apply RHSA-2022:7338 for Red Hat Enterprise Linux 7

yum update -y kernel-rt
# or:
dnf upgrade -y kernel-rt

OS impact

OS	Version	Status	Fixed in
almalinux	9	fixed	`kernel-rt-debug-core-5.14.0-162.6.1.rt21.168.el9_1.x86_64.rpm`
rhel	9	fixed
rocky	8	fixed
sles		affected
debian	bookworm	fixed	`5.18.16-1`
debian	bullseye	fixed	`5.10.136-1`
debian	forky	fixed	`5.18.16-1`
debian	sid	fixed	`5.18.16-1`
debian	trixie	fixed	`5.18.16-1`
almalinux	8	fixed	`kernel-doc-4.18.0-425.3.1.el8.noarch.rpm`

References

Verify integrity in audit chain (admin only). AS-IS.