Linux Kernel Multiple Vulnerabilities
RISK: High Risk
TYPE: Operating Systems - Linux
Multiple vulnerabilities were identified in Linux Kernel. A remote attacker could exploit some of these vulnerabilities to trigger denial of service condition, elevation of privilege and remote code execution on the targeted system.
[Updated 29-July-2021] Added SUSE Linux Kernel Security Advisories.
[Updated on 2025-10-08]
Updated Description, Impact, Source and Related Links.
CVE-2021-22555 is being exploited in the wild. Linux Kernel contains a heap out-of-bounds write vulnerability that could allow an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space. Hence, the risk level is rated from Medium Risk to High Risk.
Impact
- Denial of Service
- Remote Code Execution
- Elevation of Privilege
System / Technologies affected
- SUSE Linux Enterprise Live Patching 12-SP4
- SUSE Linux Enterprise Live Patching 12-SP5
- SUSE Linux Enterprise Module for Live Patching 15
- SUSE Linux Enterprise Module for Live Patching 15-SP1
- SUSE Linux Enterprise Module for Live Patching 15-SP2
- SUSE Linux Enterprise Module for Live Patching 15-SP3
- SUSE Linux Enterprise Server 12-SP3-LTSS
- SUSE Linux Enterprise Server for SAP 12-SP3
- Ubuntu 14.04 ESM
- Ubuntu 16.04 ESM
- Ubuntu 18.04 LTS
- Ubuntu 20.04 LTS
Solutions
Before installation of the software, please visit the vendor web-site for more details.
- Apply fixes issued by the vendor:
For detail, please refer to the link below:
https://www.suse.com/support/update/announcement/2021/suse-su-20212487-1/
https://www.suse.com/support/update/announcement/2021/suse-su-20212538-1/
https://ubuntu.com/security/notices/LSN-0079-1
Vulnerability Identifier
Source
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