CVE-2022-0492
Published Mar 3, 2022
Last updated 10 hours ago
AI description
Automated description summarized from trusted sources.
CVE-2022-0492 is a privilege escalation vulnerability found in the Linux kernel, specifically within the `cgroup_release_agent_write` function in the cgroups v1 implementation. This flaw allows an attacker to bypass namespace isolation and escalate privileges. The core issue stems from a missing authorization or capability check, enabling users who should not have such permissions to interact with a critical system file. The vulnerability exploits the `release_agent` feature of cgroups v1. This feature is designed to execute a specified program as the root user when a control group becomes empty. Under normal circumstances, only privileged users should be able to modify the `release_agent` file. However, CVE-2022-0492 allowed unprivileged users to manipulate this file, leading to the execution of arbitrary code with root privileges on the host system, thereby facilitating container escape.
- Description
- A vulnerability was found in the Linux kernel’s cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
- Products
- h300s_firmware, h410c_firmware, h410s_firmware, h500s_firmware, h700s_firmware, bootstrap_os, linux_kernel, debian_linux, codeready_linux_builder, codeready_linux_builder_for_power_little_endian, virtualization_host, enterprise_linux, enterprise_linux_eus, enterprise_linux_for_ibm_z_systems, enterprise_linux_for_ibm_z_systems_eus, enterprise_linux_for_power_little_endian, enterprise_linux_for_power_little_endian_eus, enterprise_linux_for_real_time_for_nfv_tus, enterprise_linux_for_real_time_tus, enterprise_linux_server_aus, enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions, enterprise_linux_server_tus, enterprise_linux_server_update_services_for_sap_solutions, ubuntu_linux, fedora, solidfire\,_enterprise_sds_\&_hci_storage_node, solidfire_\&_hci_management_node
CVSS 3.1
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 6.9
- Impact score
- 10
- Exploitability score
- 3.4
- Vector string
- AV:L/AC:M/Au:N/C:C/I:C/A:C
Data from CISA
- Vulnerability name
- Linux Kernel Improper Authentication Vulnerability
- Exploit added on
- Jun 2, 2026
- Exploit action due
- Jun 5, 2026
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.
- Hype score
10
CISA added active exploitation alerts for CVE-2025-48595 in Android Framework and CVE-2022-0492 in Linux kernel. The Android flaw affects Android 14-16; the Linux bug can enable container escape and root access. #Android #Linux #CISA https://t.co/7H79MzFhKc
@TweetThreatNews
3 Jun 2026
51 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Two CVEs hit CISA's KEV today. CVE-2025-48595 is a zero-interaction privilege escalation affecting Android 14-16. CVE-2022-0492 enables container escape to root via Linux cgroups v1. Federal agencies have until June 5 to patch.
@XavierRiveraX
3 Jun 2026
58 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
Top 5 Trending CVEs: 1 - CVE-2025-53773 2 - CVE-2025-32711 3 - CVE-2022-0492 4 - CVE-2024-21182 5 - CVE-2026-0257 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W
@CVEShield
3 Jun 2026
77 Impressions
0 Retweets
0 Likes
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CISAが既知の悪用された脆弱性2件をカタログに追加 CISA Adds Two Known Exploited Vulnerabilities to Catalog #CISA (Jun 2) CVE-2022-0492 Linuxカーネルの不適切な認証の脆弱性 CVE-2025-48595 Androidフレームワークの整数オーバーフロ
@foxbook
3 Jun 2026
180 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
米国サイバーセキュリティ・社会基盤安全保障庁(CISA)が既知の悪用された脆弱性カタログにLinux Kernelの認証不備CVE-2022-0492とAndroidの整数オーバーフローCVE-2025-48595を追加。対処期限はいずれも重大リスク扱いの
@__kokumoto
2 Jun 2026
1096 Impressions
0 Retweets
7 Likes
2 Bookmarks
1 Reply
0 Quotes
🛡️ We added Linux Kernel improper authentication vulnerability CVE-2022-0492 & Android Framework integer overflow vulnerability CVE-2025-48595 to our Known Exploited Vulnerabilities Catalog. Visit https://t.co/myxOwap1Tf & apply mitigations to protect your org from c
@CISACyber
2 Jun 2026
4558 Impressions
12 Retweets
36 Likes
4 Bookmarks
1 Reply
1 Quote
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