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security advisorykernelubuntuUbuntu 20.04 LTS USN-6397-1 Moderate: Kernel Security Issues
Several security issues were fixed in the Linux kernel.. ========================================================================== Ubuntu Security Notice USN-6397-1 September 26, 2023 linux-bluefield vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-bluefield: Linux kernel for NVIDIA BlueField platforms Details: Daniel Moghimi discovered that some Intel(R) Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. (CVE-2022-40982) Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service (bluetooth communication). (CVE-2023-2002) Tavis Ormandy discovered that some AMD processors did not properly handle speculative execution of certain vector register instructions. A local attacker could use this to expose sensitive information. (CVE-2023-20593) Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained 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-2023-21255) Juan Jose Lopez Jaimez, Meador Inge, Simon Scannell, and Nenad Stojanovski discovered that the BPF verifier in the Linux kernel did not properly mark registers for precision tracking in certain situations, leading to an out- of-bounds access vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-2163) Zheng Zhang discovered that the device-mapper implementation in the Linux kerneldid not properly handle locking during table_clear() operations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-2269) It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in certain situations. A local attacker could use this to cause a denial of service (kernel deadlock). (CVE-2023-31084) It was discovered that the kernel-> user space relay implementation in the Linux kernel did not properly perform certain buffer calculations, leading to an out-of-bounds read vulnerability. A local attacker could use this to cause a denial of service (system crash) or expose sensitive information (kernel memory). (CVE-2023-3268) It was discovered that the video4linux driver for Philips based TV cards in the Linux kernel contained a race condition during device removal, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35823) It was discovered that the SDMC DM1105 PCI device driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35824) It was discovered that the Renesas USB controller driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-35828) It was discovered that the universal 32bit network packet classifier implementation in the Linux kernel did not properly perform reference counting in some situations, 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-2023-3609) It was discovered that the Quick Fair Queueing network scheduler implementation in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-3611) It was discovered that the network packet classifier with netfilter/firewall marks implementation in the Linux kernel did not properly handle reference counting, 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-2023-3776) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1070-bluefield 5.4.0-1070.76 linux-image-bluefield 5.4.0.1070.65 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: https://ubuntu.com/security/notices/USN-6397-1 CVE-2022-40982, CVE-2023-2002, CVE-2023-20593, CVE-2023-21255, CVE-2023-2163, CVE-2023-2269, CVE-2023-31084, CVE-2023-3268, CVE-2023-35823, CVE-2023-35824, CVE-2023-35828, CVE-2023-3609, CVE-2023-3611, CVE-2023-3776 Package Information: https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1070.76 . Ubuntu 20.04 LTS has rolled out vital updates tackling several security vulnerabilities within the kernel and mitigating denial of service risks.. Kernel Security, Ubuntu 20.04 Updates, Denial of Service Risks. . Severity: Important.LinuxSecurity.com Team
Sep 26, 2023 •Important Ubuntu 89
security advisoryFedoraupdate informationFedora 34: FEDORA-2021-82c8dfe96d Moderate Update for Radeontop Tool
The binary got built with Fedora mandatory compiler flags.. --------------------------------------------------------------------------------Fedora Update Notification FEDORA-2021-82c8dfe96d 2021-11-11 00:54:27.291847 --------------------------------------------------------------------------------Name : radeontop Product : Fedora 34 Version : 1.3.post4 Release : 4g1552170.fc34 URL : https://github.com/clbr/radeontop Summary : AMD Radeon video cards monitoring utility Description : RadeonTop is a monitoring utility for AMD Radeon cards from R600 and up. --------------------------------------------------------------------------------Update Information: The binary got built with Fedora mandatory compiler flags. --------------------------------------------------------------------------------ChangeLog: * Wed Nov 3 2021 Dominik Mierzejewski - 1.3.post4-4g1552170 - Ensure Fedora build flags are used --------------------------------------------------------------------------------References: [ 1 ] Bug #1909558 - radeontop doesn't use Fedora CFLAGS and gets built again in %install https://bugzilla.redhat.com/show_bug.cgi?id=1909558 --------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2021-82c8dfe96d' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/security/ --------------------------------------------------------------------------------_______________________________________________ package-announce mailing list --
Nov 10, 2021 Fedora 
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