--- title: 'USN-6639-1: Linux kernel (OEM) vulnerabilities | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-6639-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-6639-1 --- # USN-6639-1: Linux kernel (OEM) vulnerabilities Publication date 15 February 2024 Overview Several security issues were fixed in the Linux kernel. Releases [22.04 LTS](https://ubuntu.com/security/notices?release=jammy) --- Open side navigation ## Packages * [linux-oem-6.1](https://ubuntu.com/security/cves?package=linux-oem-6.1) - Linux kernel for OEM systems ## Details It was discovered that a race condition existed in the ATM (Asynchronous Transfer Mode) subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. ([CVE-2023-51780](https://ubuntu.com/security/CVE-2023-51780)) It was discovered that a race condition existed in the AppleTalk networking subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. ([CVE-2023-51781](https://ubuntu.com/security/CVE-2023-51781)) It was discovered that a race condition existed in the Rose X.25 protocol implementation in the Linux kernel, leading to a use-after- free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. ( --- Show more ## Update instructions After a standard system update you need to reboot your computer to make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) 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. The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 22.04 LTS jammy | [linux-image-6.1.0-1033-oem](https://launchpad.net/ubuntu/+source/linux-signed-oem-6.1) –  [6.1.0-1033.33](https://launchpad.net/ubuntu/+source/linux-signed-oem-6.1/6.1.0-1033.33) | | | | [linux-image-oem-22.04](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1) –  [6.1.0.1033.34](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1/6.1.0.1033.34) | | | | [linux-image-oem-22.04a](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1) –  [6.1.0.1033.34](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1/6.1.0.1033.34) | | | | [linux-image-oem-22.04b](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1) –  [6.1.0.1033.34](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1/6.1.0.1033.34) | | | | [linux-image-oem-22.04c](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1) –  [6.1.0.1033.34](https://launchpad.net/ubuntu/+source/linux-meta-oem-6.1/6.1.0.1033.34) | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2024-22705](https://ubuntu.com/security/CVE-2024-22705) * [CVE-2024-0646](https://ubuntu.com/security/CVE-2024-0646) * [CVE-2024-0607](https://ubuntu.com/security/CVE-2024-0607) * [CVE-2024-0565](https://ubuntu.com/security/CVE-2024-0565) * [CVE-2023-6932](https://ubuntu.com/security/CVE-2023-6932) * [CVE-2023-6622](https://ubuntu.com/security/CVE-2023-6622) * [CVE-2023-6531](https://ubuntu.com/security/CVE-2023-6531) * [CVE-2023-6121](https://ubuntu.com/security/CVE-2023-6121) * [CVE-2023-51782](https://ubuntu.com/security/CVE-2023-51782) * [CVE-2023-51781](https://ubuntu.com/security/CVE-2023-51781) --- Show 1 more references ## Related notices id="usn" *Search* * [USN-6726-1](https://ubuntu.com/security/notices/USN-6726-1) * [USN-6726-2](https://ubuntu.com/security/notices/USN-6726-2) * [USN-6726-3](https://ubuntu.com/security/notices/USN-6726-3) * [USN-6725-1](https://ubuntu.com/security/notices/USN-6725-1) * [USN-6725-2](https://ubuntu.com/security/notices/USN-6725-2) * [USN-6724-1](https://ubuntu.com/security/notices/USN-6724-1) * [USN-6724-2](https://ubuntu.com/security/notices/USN-6724-2) * [USN-6716-1](https://ubuntu.com/security/notices/USN-6716-1) * [USN-6705-1](https://ubuntu.com/security/notices/USN-6705-1) * [USN-6701-1](https://ubuntu.com/security/notices/USN-6701-1) --- Show 55 more references --- Have additional questions? 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