CVE-2022-0500

medium

Published 2024-05-22 · Modified 2024-05-29

CVSS v3

—

CVSS v2

—

VIR risk

5.5

Description

Moderate: kernel-rt security and bug fix update

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-2024-2950.html

vendor Authored 2026-05-27

Vendor advisory: alma — https://access.redhat.com/errata/RHSA-2024:2950

vendor Authored 2026-05-27

Vendor advisory: alma — https://errata.almalinux.org/8/ALSA-2024-3138.html

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2272811

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2270883

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2270836

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2269217

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2269189

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2267761

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2267760

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2267750

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2267695

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2265653

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2265285

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2257979

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2257682

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2256822

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2256490

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2255283

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2254982

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2254961

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2253632

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2250043

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2244720

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2239847

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2239845

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2235306

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2231410

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2230042

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2226788

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2226787

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2226784

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2226777

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2221702

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2221463

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2221039

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2219359

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2218332

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2213132

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2179892

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2177759

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2151959

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2150953

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2044578

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2043520

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/2039178

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/1999589

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/1888726

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/1746732

vendor Authored 2026-05-27

Vendor advisory: alma — https://bugzilla.redhat.com/1731000

vendor Authored 2026-05-27

Vendor advisory: alma — https://access.redhat.com/errata/RHSA-2024:3138

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-0500

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2022-0500.html

vendor Authored 2026-05-27

Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2024:2950

Mitigation details

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

Description kernel: Linux ebpf logic vulnerability leads to critical memory read and write gaining root privileges Red Hat statement The default Red Hat Enterprise Linux kernel prevents unprivileged users from being able to use eBPF by the kernel.unprivileged_bpf_disabled sysctl. This would require a privileged user with CAP_SYS_ADMIN or root to be able to abuse this flaw reducing its attack…

Description

kernel: Linux ebpf logic vulnerability leads to critical memory read and write gaining root privileges

Red Hat statement

The default Red Hat Enterprise Linux kernel prevents unprivileged users from being able to use eBPF by the kernel.unprivileged_bpf_disabled sysctl. This would require a privileged user with CAP_SYS_ADMIN or root to be able to abuse this flaw reducing its attack space. For Red Hat Enterprise Linux 7 the eBPF for unprivileged users is always disabled. For Red Hat Enterprise Linux 8 to confirm the current state, inspect the sysctl with the command: ``` # cat /proc/sys/kernel/unprivileged_bpf_disabled ``` The setting of 1 would mean that unprivileged users can not use eBPF, mitigating the flaw. A kernel update will be required to mitigate the flaw for the root or users with CAP_SYS_ADMIN (or CAP_BPF) capabilities.

CVSS v3: 7.0 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)

Errata / fixed releases

Product	Package	Advisory	Released
Red Hat Enterprise Linux 8	`kernel-rt-0:4.18.0-553.rt7.342.el8_10`	RHSA-2024:2950	2024-05-22T00:00:00Z
Red Hat Enterprise Linux 8	`kernel-0:4.18.0-553.el8_10`	RHSA-2024:3138	2024-05-22T00:00:00Z
Red Hat Enterprise Linux 8.6 Extended Update Support	`kernel-0:4.18.0-372.91.1.el8_6`	RHSA-2024:0724	2024-02-07T00:00:00Z
Red Hat Enterprise Linux 8.8 Extended Update Support	`kernel-0:4.18.0-477.81.1.el8_8`	RHSA-2024:10262	2024-11-26T00:00:00Z
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8	`kernel-0:4.18.0-372.91.1.el8_6`	RHSA-2024:0724	2024-02-07T00:00:00Z

Package state

Product	Package	State
Red Hat Enterprise Linux 6	`kernel`	Not affected
Red Hat Enterprise Linux 7	`kernel`	Not affected
Red Hat Enterprise Linux 7	`kernel-rt`	Not affected
Red Hat Enterprise Linux 9	`kernel`	Affected
Red Hat Enterprise Linux 9	`kernel-rt`	Will not fix

Apply commands

bash fix

Apply RHSA-2024:2950 for Red Hat Enterprise Linux 8

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

Affected

Vendor	Product	Version
redhat	Red Hat Enterprise Linux 6	`Not affected`
redhat	Red Hat Enterprise Linux 7	`Not affected`
redhat	Red Hat Enterprise Linux 7	`Not affected`
redhat	Red Hat Enterprise Linux 9	`Affected`

OS impact

OS	Version	Status	Fixed in
arch		fixed	`5.15.54-1`
rocky	8	fixed
sles		affected
debian	bookworm	fixed	`5.16.10-1`
debian	bullseye	affected
debian	forky	fixed	`5.16.10-1`
debian	sid	fixed	`5.16.10-1`
debian	trixie	fixed	`5.16.10-1`

References

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