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Ubuntu Security Notices (USN)

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

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  • High max 8.8
    USN-8903-2 232 CVEs 1 exploited

    linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - x86 architec…

    first Oct 9, 2026
  • High max 8.8
    USN-8903-1 232 CVEs 1 exploited

    linux, linux-aws, linux-aws-6.8, linux-aws-fips, linux-fips, 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: - ARM32 architecture; - ARM64 architecture; - MIPS architecture; - x86 architec…

    first Oct 8, 2026
  • High max 8.8
    USN-8373-1 21 CVEs 1 exploited

    linux, linux-aws, linux-aws-6.8, linux-aws-fips, linux-azure, linux-fips, linux-gcp, linux-gcp-6.8, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-nvidia-tegra, linux-oracle, linux-oracle-6.8, linux-raspi, linux-raspi-realtime, linux-realtime, linux-realtime-6.8 vulnerabilities

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processin…

    first Jun 2, 2026
  • High max 8.8
    USN-8461-1 18 CVEs 1 exploited

    linux-azure vulnerabilities

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processin…

    first Jun 22, 2026
  • High max 8.8
    USN-8371-1 18 CVEs 1 exploited

    linux, linux-aws, linux-azure, linux-azure-6.17, linux-hwe-6.17, linux-nvidia-6.17, linux-oem-6.17, linux-oracle, linux-oracle-6.17, linux-raspi, linux-realtime, linux-realtime-6.17 vulnerabilities

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processin…

    first Jun 2, 2026
  • High max 8.8
    USN-8370-1 17 CVEs 1 exploited

    linux, linux-aws, linux-gcp, linux-ibm, linux-nvidia, linux-oracle, linux-raspi, linux-realtime vulnerabilities

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processin…

    first Jun 2, 2026
  • High max 7.8
    USN-8441-1 6 CVEs 1 exploited

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

    It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) Seve…

    first Jun 17, 2026
  • High max 7.8
    USN-8281-2 5 CVEs 1 exploited

    linux-azure-4.15, linux-azure-fips vulnerabilities

    It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) Seve…

    first May 22, 2026
  • High max 7.8
    USN-8281-1 5 CVEs 1 exploited

    linux, linux-aws, linux-aws-fips, linux-fips, linux-gcp-4.15, linux-gcp-fips, linux-kvm, linux-oracle vulnerabilities

    It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431) Seve…

    first May 19, 2026
  • High max 7.4
    USN-8987-1 2 CVEs 1 exploited

    libuser vulnerabilities

    It was discovered that libuser did not properly validate the GECOS field when changing user information. A local attacker could possibly use this issue to corrupt the passwd file, resulting in a denial of service. (CVE-2015-3245) It was discovered that libuse…

    first Nov 3, 2026
  • 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
  • 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
  • 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
  • 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
  • High max 8.6
    USN-7922-3 15 CVEs 1 exploited

    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: - Cryptographic API; - ACPI drivers; - InfiniBand drivers; - Media drivers; - N…

    first Dec 19, 2025
  • High max 7.8
    USN-7627-1 12 CVEs 1 exploited

    linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-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: - PowerPC architecture; - Block layer subsystem; - ACPI drivers; - NILFS2 file …

    first Jul 8, 2025
  • High max 7.8
    USN-7627-2 12 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: - PowerPC architecture; - Block layer subsystem; - ACPI drivers; - NILFS2 file …

    first Jul 8, 2025
  • High max 7.8
    USN-7607-1 10 CVEs 1 exploited

    linux, linux-aws, linux-lts-xenial vulnerabilities

    It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3640) Several security issues w…

    first Jul 1, 2025
  • High max 7.8
    USN-7607-2 10 CVEs 1 exploited

    linux-fips vulnerabilities

    It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3640) Several security issues w…

    first Jul 1, 2025