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Ubuntu Security Notices (USN)

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

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  • Critical max 9.8
    USN-7310-1 730 CVEs 4 exploited

    linux-oem-6.11 vulnerabilities

    Attila Szász discovered that the HFS+ file system implementation in the Linux Kernel contained a heap overflow vulnerability. An attacker could use a specially crafted file system image that, when mounted, could cause a denial of service (system crash) or pos…

    first Feb 28, 2025
  • Critical max 9.8
    USN-7452-1 460 CVEs 2 exploited

    linux-gcp-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; - MIPS architecture; - PowerPC architecture; - RISC-V arc…

    first Apr 23, 2025
  • Critical max 9.8
    USN-7449-2 461 CVEs 2 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; - MIPS architecture; - PowerPC architecture; - RISC-V arc…

    first Apr 24, 2025
  • Critical max 9.8
    USN-7774-1 142 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-oracle, 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: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI driver…

    first Dec 3, 2025
  • Critical max 10.0
    USN-7940-2 73 CVEs 3 exploited

    linux-azure-nvidia 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 Jan 9, 2026
  • Critical max 9.8
    USN-7938-1 187 CVEs 1 exploited

    linux-azure-5.15 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 Dec 16, 2025
  • Critical max 9.8
    USN-7934-1 205 CVEs 1 exploited

    linux-azure, linux-azure-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) Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and …

    first Dec 15, 2025
  • Critical max 10.0
    USN-7940-1 73 CVEs 3 exploited

    linux-azure-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 Dec 17, 2025
  • High max 8.6
    USN-7939-2 23 CVEs 2 exploited

    linux-azure-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 Dec 16, 2025
  • High max 8.6
    USN-7939-1 23 CVEs 2 exploited

    linux-azure, linux-azure-5.4 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 Dec 16, 2025
  • High max 7.8
    USN-7935-1 13 CVEs 2 exploited

    linux-azure, linux-azure-6.8 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 Dec 15, 2025
  • High max 8.6
    USN-7937-1 33 CVEs 3 exploited

    linux-azure-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 Dec 16, 2025
  • High max 8.6
    USN-7928-1 9 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.15, linux-azure, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, linux-oracle, linux-oracle-5.15, 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; - Media drivers; - Network drivers; - AFS file system; - F…

    first Dec 11, 2025
  • Critical max 9.8
    USN-7936-1 6 CVEs 1 exploited

    linux-oem-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: - Cryptographic API; - Compute Acceleration Framework; - Media drivers; - Netfi…

    first Dec 15, 2025
  • High max 7.8
    USN-7931-5 5 CVEs 1 exploited

    linux-raspi, 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: - Cryptographic API; - Media drivers; - Memory management; - Appletalk network …

    first Jan 9, 2026
  • High max 7.8
    USN-7931-4 5 CVEs 1 exploited

    linux-xilinx 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; - Media drivers; - Memory management; - Appletalk network …

    first Dec 19, 2025
  • High max 7.8
    USN-7931-3 5 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: - Cryptographic API; - Media drivers; - Memory management; - Appletalk network …

    first Dec 15, 2025
  • High max 7.8
    USN-7931-1 5 CVEs 1 exploited

    linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oracle, 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: - Cryptographic API; - Media drivers; - Memory management; - Appletalk network …

    first Dec 15, 2025
  • Critical max 9.8
    USN-7774-2 142 CVEs 1 exploited

    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: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI driver…

    first Sep 25, 2025
  • High max 7.8
    USN-7931-2 5 CVEs 1 exploited

    linux-fips, linux-aws-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: - Cryptographic API; - Media drivers; - Memory management; - Appletalk network …

    first Dec 15, 2025
  • High max 8.6
    USN-7930-2 18 CVEs 1 exploited

    linux-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: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBan…

    first Dec 15, 2025
  • High max 8.6
    USN-7928-2 9 CVEs 1 exploited

    linux-fips, linux-aws-fips, linux-azure-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: - Cryptographic API; - Media drivers; - Network drivers; - AFS file system; - F…

    first Dec 11, 2025
  • High max 8.6
    USN-7928-4 9 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: - Cryptographic API; - Media drivers; - Network drivers; - AFS file system; - F…

    first Dec 19, 2025
  • High max 8.6
    USN-7928-3 9 CVEs 1 exploited

    linux-realtime, linux-intel-iot-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: - Cryptographic API; - Media drivers; - Network drivers; - AFS file system; - F…

    first Dec 11, 2025
  • High max 8.6
    USN-7922-5 15 CVEs 1 exploited

    linux-iot 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; - ACPI drivers; - InfiniBand drivers; - Media drivers; - N…

    first Jan 12, 2026
  • High max 8.6
    USN-7922-4 15 CVEs 1 exploited

    linux-raspi, 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: - Cryptographic API; - ACPI drivers; - InfiniBand drivers; - Media drivers; - N…

    first Jan 6, 2026
  • High max 8.6
    USN-7922-2 15 CVEs 1 exploited

    linux-fips, linux-aws-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: - Cryptographic API; - ACPI drivers; - InfiniBand drivers; - Media drivers; - N…

    first Dec 11, 2025
  • High max 8.6
    USN-7907-1 22 CVEs 1 exploited

    linux, linux-aws, linux-aws-hwe, linux-kvm, 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: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBan…

    first Dec 3, 2025
  • High max 8.6
    USN-7922-1 15 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, 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; - ACPI drivers; - InfiniBand drivers; - Media drivers; - N…

    first Dec 10, 2025
  • High max 8.6
    USN-7907-5 22 CVEs 1 exploited

    linux-azure, linux-azure-4.15, 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: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBan…

    first Dec 12, 2025
  • High max 8.6
    USN-7907-2 22 CVEs 1 exploited

    linux-aws-fips, linux-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: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBan…

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

    linux, linux-aws, linux-azure, linux-azure-6.8, linux-gcp, linux-gkeop, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, 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: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI driver…

    first Oct 22, 2025
  • Critical max 9.8
    USN-7921-2 4 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: - Cryptographic API; - Media drivers; - Netfilter; - TLS protocol; (CVE-2025-39…

    first Dec 19, 2025
  • High max 8.6
    USN-7907-4 22 CVEs 1 exploited

    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: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBan…

    first Dec 4, 2025
  • High max 8.6
    USN-7907-3 22 CVEs 1 exploited

    linux-gcp, linux-gcp-4.15, linux-hwe 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; - ACPI drivers; - Hardware monitoring drivers; - InfiniBan…

    first Dec 4, 2025
  • High max 8.6
    USN-7930-1 18 CVEs 1 exploited

    linux, linux-aws, linux-kvm, 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: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBan…

    first Dec 15, 2025
  • High max 8.6
    USN-7928-5 9 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: - Cryptographic API; - Media drivers; - Network drivers; - AFS file system; - F…

    first Jan 9, 2026
  • Critical max 9.8
    USN-7921-1 4 CVEs 1 exploited

    linux, linux-aws, linux-aws-6.14, linux-gcp, linux-hwe-6.14, 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: - Cryptographic API; - Media drivers; - Netfilter; - TLS protocol; (CVE-2025-39…

    first Dec 10, 2025
  • Critical max 10.0
    USN-7833-2 173 CVEs 1 exploited

    linux-realtime-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-7833-1 173 CVEs 1 exploited

    linux, linux-aws, linux-gcp, linux-oem-6.14, linux-oracle, linux-oracle-6.14, linux-raspi, linux-realtime 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 21, 2025