USN-6868-2: Linux kernel (AWS) vulnerabilities
10 July 2024
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux-aws-5.4 - Linux kernel for Amazon Web Services (AWS) systems
Details
Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida
discovered that the Linux kernel mitigations for the initial Branch History
Injection vulnerability (CVE-2022-0001) were insufficient for Intel
processors. A local attacker could potentially use this to expose sensitive
information. (CVE-2024-2201)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Netfilter;
(CVE-2024-26925, CVE-2024-26643)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04
-
linux-image-5.4.0-1127-aws
-
5.4.0-1127.137~18.04.2
Available with Ubuntu Pro
-
linux-image-aws
-
5.4.0.1127.137~18.04.1
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References
Related notices
- USN-6868-1
- USN-6872-1
- USN-6873-1
- USN-6874-1
- USN-6872-2
- USN-6873-2
- USN-6893-1
- USN-6896-1
- USN-6898-1
- USN-6893-2
- USN-6898-2
- USN-6900-1
- USN-6898-3
- USN-6893-3
- USN-6898-4
- USN-6917-1
- USN-6918-1
- USN-6919-1
- USN-6927-1
- USN-7019-1
- USN-6766-1
- USN-6766-2
- USN-6774-1
- USN-6766-3
- USN-6795-1
- USN-6828-1
- USN-6865-1
- USN-6866-1
- USN-6866-2
- USN-6866-3
- USN-6869-1
- USN-6870-1
- USN-6871-1
- USN-6870-2
- USN-6892-1