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[{"id":483,"title":"Self-taught through trial and error","votes":546,"type":"x","order":1,"pct":78.45,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.31,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.36,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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172

Ubuntu 20.04 LTS: USN-7517-3 critical: Linux BlueField kernel issues

Several security issues were fixed in the Linux kernel.. ========================================================================== Ubuntu Security Notice USN-7517-3 May 26, 2025 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: 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: - ARM64 architecture; - PowerPC architecture; - Block layer subsystem; - Drivers core; - Network block device driver; - Character device driver; - GPU drivers; - HID subsystem; - InfiniBand drivers; - Media drivers; - Network drivers; - PPS (Pulse Per Second) driver; - PTP clock framework; - RapidIO drivers; - Real Time Clock drivers; - SCSI subsystem; - SLIMbus drivers; - QCOM SoC drivers; - Trusted Execution Environment drivers; - USB DSL drivers; - USB Device Class drivers; - USB core drivers; - USB Gadget drivers; - USB Host Controller drivers; - Renesas USBHS Controller drivers; - File systems infrastructure; - BTRFS file system; - Ceph distributed file system; - NILFS2 file system; - UBI file system; - KVM subsystem; - L3 Master device support module; - Netfilter; - Process Accounting mechanism; - printk logging mechanism; - Scheduler infrastructure; - Tracing infrastructure; - Memory management; - 802.1Q VLAN protocol; - B.A.T.M.A.N. meshing protocol; - Bluetooth subsystem; - Networking core; - IPv4 networking; - IPv6 networking; - Logical Link layer; - NFC subsystem; - Open vSwitch; - Rose network layer; - Network traffic control; - Wireless networking; - Tomoyo securitymodule; (CVE-2024-58055, CVE-2025-21715, CVE-2024-26982, CVE-2025-21806, CVE-2024-58052, CVE-2024-57981, CVE-2025-21935, CVE-2025-21763, CVE-2024-58002, CVE-2025-21736, CVE-2025-21704, CVE-2024-57986, CVE-2025-21761, CVE-2024-58069, CVE-2025-21934, CVE-2024-58017, CVE-2025-21862, CVE-2024-26689, CVE-2025-21744, CVE-2025-21776, CVE-2024-56599, CVE-2025-21858, CVE-2025-21722, CVE-2025-21791, CVE-2025-21735, CVE-2025-21926, CVE-2025-21904, CVE-2024-58009, CVE-2024-58010, CVE-2024-58063, CVE-2025-21765, CVE-2025-21914, CVE-2025-21866, CVE-2025-21760, CVE-2024-57979, CVE-2024-58071, CVE-2025-21781, CVE-2025-21772, CVE-2025-21928, CVE-2025-21762, CVE-2024-58014, CVE-2024-57980, CVE-2024-26996, CVE-2025-21708, CVE-2025-21922, CVE-2024-58051, CVE-2023-52927, CVE-2024-58085, CVE-2025-21721, CVE-2025-21782, CVE-2025-21871, CVE-2024-50055, CVE-2025-21749, CVE-2025-21835, CVE-2024-58007, CVE-2025-21971, CVE-2024-58083, CVE-2025-21731, CVE-2024-57973, CVE-2025-21811, CVE-2025-21728, CVE-2023-52741, CVE-2025-21865, CVE-2025-21859, CVE-2025-21823, CVE-2025-21877, CVE-2024-57977, CVE-2025-21917, CVE-2025-21909, CVE-2025-21846, CVE-2024-58072, CVE-2025-21848, CVE-2023-52664, CVE-2025-21785, CVE-2021-47191, CVE-2025-21910, CVE-2025-21925, CVE-2025-21814, CVE-2024-58020, CVE-2025-21764, CVE-2024-58058, CVE-2025-21905, CVE-2025-21787, CVE-2024-58001, CVE-2025-21647, CVE-2025-21719, CVE-2024-58090, CVE-2025-21753, CVE-2025-21718, CVE-2025-21948, CVE-2025-21898, CVE-2025-21920, CVE-2025-21916) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS linux-image-5.4.0-1105-bluefield 5.4.0-1105.112 linux-image-bluefield 5.4.0.1105.101 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 youmanually 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-7517-3 https://ubuntu.com/security/notices/USN-7517-2 https://ubuntu.com/security/notices/USN-7517-1 CVE-2021-47191, CVE-2023-52664, CVE-2023-52741, CVE-2023-52927, CVE-2024-26689, CVE-2024-26982, CVE-2024-26996, CVE-2024-50055, CVE-2024-56599, CVE-2024-57973, CVE-2024-57977, CVE-2024-57979, CVE-2024-57980, CVE-2024-57981, CVE-2024-57986, CVE-2024-58001, CVE-2024-58002, CVE-2024-58007, CVE-2024-58009, CVE-2024-58010, CVE-2024-58014, CVE-2024-58017, CVE-2024-58020, CVE-2024-58051, CVE-2024-58052, CVE-2024-58055, CVE-2024-58058, CVE-2024-58063, CVE-2024-58069, CVE-2024-58071, CVE-2024-58072, CVE-2024-58083, CVE-2024-58085, CVE-2024-58090, CVE-2025-21647, CVE-2025-21704, CVE-2025-21708, CVE-2025-21715, CVE-2025-21718, CVE-2025-21719, CVE-2025-21721, CVE-2025-21722, CVE-2025-21728, CVE-2025-21731, CVE-2025-21735, CVE-2025-21736, CVE-2025-21744, CVE-2025-21749, CVE-2025-21753, CVE-2025-21760, CVE-2025-21761, CVE-2025-21762, CVE-2025-21763, CVE-2025-21764, CVE-2025-21765, CVE-2025-21772, CVE-2025-21776, CVE-2025-21781, CVE-2025-21782, CVE-2025-21785, CVE-2025-21787, CVE-2025-21791, CVE-2025-21806, CVE-2025-21811, CVE-2025-21814, CVE-2025-21823, CVE-2025-21835, CVE-2025-21846, CVE-2025-21848, CVE-2025-21858, CVE-2025-21859, CVE-2025-21862, CVE-2025-21865, CVE-2025-21866, CVE-2025-21871, CVE-2025-21877, CVE-2025-21898, CVE-2025-21904, CVE-2025-21905, CVE-2025-21909, CVE-2025-21910, CVE-2025-21914, CVE-2025-21916, CVE-2025-21917, CVE-2025-21920, CVE-2025-21922, CVE-2025-21925, CVE-2025-21926, CVE-2025-21928, CVE-2025-21934, CVE-2025-21935, CVE-2025-21948, CVE-2025-21971 Package Information: https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1105.112 . Multiple weaknesses within the Linux kernel pertainingto Ubuntu BlueField have been addressed to bolster system protection.. linux kernel update, ubuntu security notice, bluefield vulnerabilities, system security fix. . Severity: Critical. LinuxSecurity.com Team

Calendar 2 May 26, 2025 Critical Ubuntu
172

Ubuntu 20.04 LTS USN-6387-2 Critical: Kernel Denial Of Service

Several security issues were fixed in the Linux kernel.. ========================================================================== Ubuntu Security Notice USN-6387-2 September 26, 2023 linux-bluefield, linux-raspi, linux-raspi-5.4 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-bluefield: Linux kernel for NVIDIA BlueField platforms - linux-raspi: Linux kernel for Raspberry Pi systems - linux-raspi-5.4: Linux kernel for Raspberry Pi systems Details: Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. (CVE-2023-20588) It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle L2CAP socket release, 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-2023-40283) It was discovered that some network classifier implementations in the Linux kernel contained use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-4128) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1071-bluefield 5.4.0-1071.77 linux-image-5.4.0-1094-raspi 5.4.0-1094.105 linux-image-bluefield 5.4.0.1071.66 linux-image-raspi 5.4.0.1094.124 linux-image-raspi2 5.4.0.1094.124 Ubuntu 18.04 LTS (Available with Ubuntu Pro): linux-image-5.4.0-1094-raspi 5.4.0-1094.105~18.04.1 linux-image-raspi-hwe-18.04 5.4.0.1094.91 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-6387-2 https://ubuntu.com/security/notices/USN-6387-1 CVE-2023-20588, CVE-2023-40283, CVE-2023-4128 Package Information: https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1071.77 https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1094.105 . Tackling a range of vulnerabilities in the Ubuntu kernel's operations to strengthen overall system security and ensure reliable performance.. Kernel Security Updates, Ubuntu System Issues, Linux Kernel Protection. . Severity: Critical. LinuxSecurity.com Team

Calendar 2 Sep 26, 2023 Critical Ubuntu
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150
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[{"id":483,"title":"Self-taught through trial and error","votes":546,"type":"x","order":1,"pct":78.45,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.31,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.89,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.36,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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