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Ubuntu Security Notices (USN)

Source: https://ubuntu.com/security/notices

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  • Critical max 9.8
    USN-7880-1 197 CVEs

    linux-oem-6.14 vulnerabilities

    It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. (CVE-2024-36331) Several security issues were discovered in the Linux…

    first Nov 21, 2025
  • Critical max 10.0
    USN-7835-3 59 CVEs 1 exploited

    linux-gcp-6.8, linux-gke, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Oct 22, 2025
  • Critical max 10.0
    USN-7834-1 172 CVEs 1 exploited

    linux-azure, linux-azure-6.14, linux-azure-nvidia-6.14 vulnerabilities

    Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores, potentially resulting in the leakage of privileged information. A local …

    first Oct 22, 2025
  • Critical max 10.0
    USN-7833-4 173 CVEs 1 exploited

    linux-gcp-6.14 vulnerabilities

    Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores, potentially resulting in the leakage of privileged information. A local …

    first Oct 31, 2025
  • Critical max 9.8
    USN-7795-1 5 CVEs

    linux, linux-aws, linux-aws-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-raspi, linux-xilinx-zynqmp vulnerabilities

    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: - Ext4 file system; - Network file system (NFS) server daemon; - Packet sockets…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7879-2 200 CVEs

    linux-realtime-6.14 vulnerabilities

    It was discovered that improper initialization of CPU cache memory could allow a local attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data integrity. (CVE-2024-36331) Several security issues were discovered in the Linux…

    first Nov 21, 2025
  • Critical max 10.0
    USN-7833-3 173 CVEs 1 exploited

    linux-aws-6.14 vulnerabilities

    Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos, and Flavien Solt discovered that some AMD processors may allow an attacker to infer data from previous stores, potentially resulting in the leakage of privileged information. A local …

    first Oct 24, 2025
  • Critical max 9.8
    USN-7796-1 7 CVEs

    linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-oracle vulnerabilities

    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: - Framebuffer layer; - BTRFS file system; - Ext4 file system; - Network file sy…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7775-3 143 CVEs 1 exploited

    linux-azure-5.15 vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Oct 1, 2025
  • Critical max 9.8
    USN-7775-1 143 CVEs 1 exploited

    linux-azure-fips vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Sep 25, 2025
  • Critical max 10.0
    USN-7887-2 60 CVEs 1 exploited

    linux-raspi vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Nov 25, 2025
  • Critical max 10.0
    USN-7887-1 60 CVEs 1 exploited

    linux-raspi-realtime vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Nov 24, 2025
  • Critical max 10.0
    USN-7835-6 59 CVEs 1 exploited

    linux-aws-6.8 vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Nov 12, 2025
  • Critical max 10.0
    USN-7835-5 59 CVEs 1 exploited

    linux-oracle-6.8 vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Nov 6, 2025
  • Critical max 10.0
    USN-7835-4 59 CVEs 1 exploited

    linux-hwe-6.8 vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Oct 31, 2025
  • Critical max 10.0
    USN-7835-2 59 CVEs 1 exploited

    linux-realtime, linux-realtime-6.8 vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Oct 22, 2025
  • Critical max 9.8
    USN-7875-1 28 CVEs 2 exploited

    linux-oracle vulnerabilities

    Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker i…

    first Nov 19, 2025
  • Critical max 9.8
    USN-7865-1 22 CVEs 2 exploited

    linux-fips vulnerabilities

    Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker i…

    first Nov 10, 2025
  • Critical max 9.8
    USN-7854-1 18 CVEs 2 exploited

    linux-kvm vulnerabilities

    Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker i…

    first Oct 30, 2025
  • Critical max 9.8
    USN-7809-1 113 CVEs

    linux-azure-nvidia vulnerabilities

    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: - ARM32 architecture; - ARM64 architecture; - x86 architecture; - Compute Accel…

    first Oct 8, 2025
  • Critical max 9.8
    USN-7796-2 7 CVEs

    linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities

    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: - Framebuffer layer; - BTRFS file system; - Ext4 file system; - Network file sy…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7795-4 5 CVEs

    linux-oracle-5.4 vulnerabilities

    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: - Ext4 file system; - Network file system (NFS) server daemon; - Packet sockets…

    first Oct 24, 2025
  • Critical max 9.8
    USN-7795-3 5 CVEs

    linux-aws-fips vulnerabilities

    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: - Ext4 file system; - Network file system (NFS) server daemon; - Packet sockets…

    first Oct 8, 2025
  • Critical max 9.8
    USN-7774-4 142 CVEs 1 exploited

    linux-kvm vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Oct 1, 2025
  • Critical max 9.8
    USN-7797-3 10 CVEs

    linux-aws vulnerabilities

    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: - Virtio block driver; - Media drivers; - Network drivers; - Framebuffer layer;…

    first Oct 21, 2025
  • Critical max 9.8
    USN-7795-5 5 CVEs

    linux-raspi-5.4 vulnerabilities

    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: - Ext4 file system; - Network file system (NFS) server daemon; - Packet sockets…

    first Nov 7, 2025
  • Critical max 9.8
    USN-7795-2 5 CVEs

    linux-fips, linux-gcp-fips vulnerabilities

    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: - Ext4 file system; - Network file system (NFS) server daemon; - Packet sockets…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7819-2 16 CVEs

    linux-azure-fips vulnerabilities

    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: - Network drivers; - Device tree and open firmware driver; - SCSI subsystem; - …

    first Oct 21, 2025
  • Critical max 9.8
    USN-7801-1 107 CVEs

    linux-hwe-6.8 vulnerabilities

    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: - ARM32 architecture; - ARM64 architecture; - x86 architecture; - Compute Accel…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7797-2 10 CVEs

    linux-aws, linux-lts-xenial vulnerabilities

    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: - Virtio block driver; - Media drivers; - Network drivers; - Framebuffer layer;…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7775-2 143 CVEs 1 exploited

    linux-azure vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Sep 26, 2025
  • Critical max 9.8
    USN-7704-1 21 CVEs

    linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm-5.15, linux-intel-iot-realtime, linux-intel-iotg-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, linux-oracle-5.15, linux-realtime, linux-xilinx-zynqmp vulnerabilities

    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: - Cryptographic API; - Arm Firmware Framework for ARMv8-A(FFA); - Multiple devi…

    first Aug 20, 2025
  • Critical max 9.8
    USN-7819-1 16 CVEs

    linux-azure, linux-azure-5.4 vulnerabilities

    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: - Network drivers; - Device tree and open firmware driver; - SCSI subsystem; - …

    first Oct 13, 2025
  • Critical max 9.8
    USN-7801-3 107 CVEs

    linux-oracle-6.8 vulnerabilities

    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: - ARM32 architecture; - ARM64 architecture; - x86 architecture; - Compute Accel…

    first Oct 15, 2025
  • Critical max 9.8
    USN-7789-1 184 CVEs 1 exploited

    linux-oracle-6.14 vulnerabilities

    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; - x86 architecture; - Block layer…

    first Oct 1, 2025
  • Critical max 9.8
    USN-7774-5 142 CVEs 1 exploited

    linux-nvidia-tegra-igx vulnerabilities

    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; - x86 architecture; - ACPI driver…

    first Oct 6, 2025
  • Critical max 9.8
    USN-7737-1 188 CVEs

    linux-azure, linux-azure-6.8, linux-azure-nvidia vulnerabilities

    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; - S390 architecture; - x86 archit…

    first Sep 3, 2025
  • Critical max 9.8
    USN-7800-1 106 CVEs

    linux-raspi-realtime vulnerabilities

    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; - x86 architecture; - Compute Acceleration Framework; - B…

    first Oct 2, 2025
  • Critical max 9.8
    USN-7796-4 7 CVEs

    linux-azure-fips vulnerabilities

    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: - Framebuffer layer; - BTRFS file system; - Ext4 file system; - Network file sy…

    first Oct 13, 2025
  • Critical max 9.8
    USN-7769-2 183 CVEs 1 exploited

    linux-realtime-6.14 vulnerabilities

    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; - x86 architecture; - Block layer…

    first Sep 24, 2025