RHSA-2021%3A3235 — Vulnetix

RHSA-2021%3A3235 PUBLISHED CVSS 7 HIGH

An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Risk Scores

CVSS 3.1

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

Affected Products

Vendor	Product	Versions
	redhat
	imgbased
	Red Hat Virtualization 4 Hypervisor for RHEL 8
	RHEL 8-based RHEV-H for RHEV 4 (build requirements)
	python3

Exploit Intelligence

CVE-2021-22555 Exploit (github-poc-repo)
CVE-2021-22555 Exploit (github-poc-repo)
CVE-2021-22555 Exploit (github-poc-repo)
Script of Network Security Project - Attack on CVE-2021-22555 (github-poc-repo)
Script of Network Security Project - Attack on CVE-2021-22555 (github-poc-repo)
Script of Network Security Project - Attack on CVE-2021-22555 (github-poc-repo)
Linux Kernel 2.6.19 < 5.9 - 'Netfilter Local Privilege Escalation' (github-poc-repo)
Linux Kernel 2.6.19 < 5.9 - 'Netfilter Local Privilege Escalation' (github-poc-repo)
Linux Kernel 2.6.19 < 5.9 - 'Netfilter Local Privilege Escalation' (github-poc-repo)
This repo hosts TUKRU's Linux Privilege Escalation exploit (CVE-2021-22555). It demonstrates gaining root privileges via a vulnerability. Tested on Ubuntu 5.8.0-48-generic and COS 5.4.89+. Use responsibly and ethically. (github-poc-repo)

…and 70 more exploits

Timeline

Aug 19, 2021 CVE Published
Mar 22, 2026 CVE Updated
Apr 9, 2026 Distribution Patch
Apr 9, 2026 Distribution Patch
Apr 9, 2026 Security Advisory
May 1, 2026 Security Advisory
May 1, 2026 Security Advisory
May 1, 2026 Security Advisory
May 1, 2026 Security Advisory
May 1, 2026 Security Advisory

References

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