Important: Kernel Security and Bug Fix Update for AlmaLinux 8
Summary
ALSA-2022:5316: Important: kernel security and bug fix update. Affects bpftool versions < 4.18.0-372.13.1.el8_6. Fixed in 4.18.0-372.13.1.el8_6. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The kernel is the core component of the Linux operating system. It provides essential functionality and interfaces for other software components to interact with the hardware. The kernel packages for AlmaLinux 8 contain the Linux kernel and related modules.
Vulnerability Detail
This update addresses multiple security vulnerabilities and bug fixes in the kernel packages. The vulnerabilities include a buffer overflow in IPsec ESP transformation code (CVE-2022-27666) and an out-of-bounds read in fbcon_get_font function (CVE-2020-28915). These vulnerabilities could potentially be exploited by attackers to gain unauthorized access, cause denial of service, or execute arbitrary code on the affected system.
How To Fix
Minimum fixed version
4.18.0-372.13.1.el8_6
This is the first release that contains the fix.
sudo dnf update bpftoolTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
No specific workaround has been mentioned for these vulnerabilities.
Conclusion
This update addresses important security vulnerabilities and bug fixes in the kernel packages for AlmaLinux 8. It is recommended to update the packages to the latest version to ensure the security and stability of your system. If you need further assistance or support in vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for bpftool →
FAQ
These vulnerabilities could potentially allow attackers to gain unauthorized access, cause denial of service, or execute arbitrary code on the affected system.
There are no known exploits for these vulnerabilities at the time of this advisory.
Yes, it is recommended to reboot the system after applying the kernel updates to ensure that the new kernel is loaded and the vulnerabilities are mitigated.
Yes, you can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by these vulnerabilities. Simply upload your package-lock.json file and Vulert will analyze it for any known vulnerabilities.
You can find more information about these vulnerabilities, including their CVE identifiers, on the CVE pages listed in the References section of the advisory.
Related vulnerabilities
Recent vulnerabilities recorded for bpftool.
