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Ubuntu Security Notices (USN)

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

8,409 results · Feed

  • Critical max 9.8
    USN-7496-2 33 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: - Block layer subsystem; - Character device driver; - Hardware crypto device dr…

    first May 7, 2025
  • Critical max 9.8
    USN-7510-1 124 CVEs

    linux, linux-gkeop, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-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; - Block layer…

    first May 16, 2025
  • High max 8.8
    USN-7495-3 3 CVEs

    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: - Network drivers; - Ceph distributed file system; - Netfilter; (CVE-2023-52664…

    first May 7, 2025
  • High max 8.8
    USN-7495-2 3 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: - Network drivers; - Ceph distributed file system; - Netfilter; (CVE-2023-52664…

    first May 6, 2025
  • High max 7.8
    USN-7494-5 2 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; - Netfilter; (CVE-2023-52664, CVE-2023-52927)

    first May 7, 2025
  • High max 8.8
    USN-7495-1 3 CVEs

    linux, linux-aws, linux-aws-5.4, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, 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: - Network drivers; - Ceph distributed file system; - Netfilter; (CVE-2023-52927…

    first May 6, 2025
  • Critical max 9.8
    USN-7459-1 267 CVEs 3 exploited

    linux-intel-iotg-5.15 vulnerabilities

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first Apr 24, 2025
  • High max 7.8
    USN-7494-4 2 CVEs

    linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-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: - Network drivers; - Netfilter; (CVE-2023-52927, CVE-2023-52664)

    first May 7, 2025
  • Critical max 9.8
    USN-7445-1 40 CVEs

    linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-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: - GPIO subsystem; - GPU drivers; - IRQ chip drivers; - Network drivers; - Mella…

    first Apr 23, 2025
  • Critical max 9.8
    USN-7384-2 318 CVEs 1 exploited

    linux-azure-6.8 vulnerabilities

    Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly execute arbitrary code. (CVE-2024-8805) Attila Szás…

    first Apr 1, 2025
  • Critical max 9.8
    USN-7459-2 267 CVEs 3 exploited

    linux-gcp-5.15 vulnerabilities

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first Apr 28, 2025
  • High max 7.8
    USN-7494-1 2 CVEs

    linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-igx, linux-oracle, linux-oracle-5.15, 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: - Network drivers; - Netfilter; (CVE-2023-52664, CVE-2023-52927)

    first May 6, 2025
  • High max 8.8
    USN-7455-2 12 CVEs 1 exploited

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

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first Apr 24, 2025
  • High max 7.8
    USN-7494-2 2 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: - Network drivers; - Netfilter; (CVE-2023-52927, CVE-2023-52664)

    first May 6, 2025
  • Critical max 9.8
    USN-7475-1 16 CVEs 1 exploited

    linux-xilinx-zynqmp vulnerabilities

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first May 2, 2025
  • High max 8.8
    USN-7460-1 13 CVEs 1 exploited

    linux-azure-fips vulnerabilities

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first Apr 24, 2025
  • High max 8.8
    USN-7455-5 12 CVEs 1 exploited

    linux-aws-5.15 vulnerabilities

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first Apr 29, 2025
  • High max 8.8
    USN-7455-4 12 CVEs 1 exploited

    linux-oracle-5.15 vulnerabilities

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first Apr 25, 2025
  • Critical max 9.8
    USN-7384-1 318 CVEs 1 exploited

    linux-azure vulnerabilities

    Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly execute arbitrary code. (CVE-2024-8805) Attila Szás…

    first Mar 27, 2025
  • High max 8.8
    USN-7455-3 12 CVEs 1 exploited

    linux-intel-iot-realtime, linux-realtime vulnerabilities

    Jann Horn discovered that the watch_queue event notification subsystem 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 escalate their privileges. (CVE-2022-0995…

    first Apr 24, 2025
  • High max 7.8
    USN-7494-3 2 CVEs

    linux-intel-iot-realtime, linux-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: - Network drivers; - Netfilter; (CVE-2023-52664, CVE-2023-52927)

    first May 6, 2025
  • Critical max 9.8
    USN-7448-1 41 CVEs

    linux-azure, linux-azure-6.11 vulnerabilities

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) Several security issues were…

    first Apr 23, 2025
  • Critical max 9.8
    USN-7595-5 33 CVEs

    linux-gcp, linux-gcp-6.8 vulnerabilities

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) Several security issues were…

    first Jun 30, 2025
  • Critical max 9.8
    USN-7595-2 33 CVEs

    linux-realtime vulnerabilities

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. (CVE-2025-2312) Several security issues were…

    first Jun 24, 2025
  • Critical max 9.4
    USN-8942-1 28 CVEs

    dotnet8, dotnet10, dotnet11 vulnerabilities

    Multiple security issues were discovered in .NET and this update includes new upstream .NET versions to fix these issues. .NET 8 has been updated to 8.0.32 in Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. .NET 10 has been updated to 10.0.13 in Ubuntu 24.04 LTS, Ubun…

    first Oct 20, 2026
  • Critical max 9.8
    USN-7387-1 251 CVEs 2 exploited

    linux, linux-aws, linux-azure, linux-gcp, linux-gke, linux-gkeop, linux-ibm, linux-intel-iotg, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15, 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; - MIPS architecture; - PowerPC architecture; - RISC-V arc…

    first Mar 27, 2025
  • Critical max 9.8
    USN-7100-1 223 CVEs

    linux, linux-aws-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15, linux-raspi, linux-xilinx-zynqmp vulnerabilities

    Supraja Sridhara, Benedict Schlüter, Mark Kuhne, Andrin Bertschi, and Shweta Shinde discovered that the Confidential Computing framework in the Linux kernel for x86 platforms did not properly handle 32-bit emulation on TDX and SEV. An attacker with access to …

    first Nov 11, 2024
  • Critical max 9.8
    USN-7392-1 154 CVEs 2 exploited

    linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4, linux-xilinx-zynqmp vulnerabilities

    Chenyuan Yang discovered that the CEC driver driver 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-2024-23848) Attila Szász dis…

    first Mar 28, 2025
  • Critical max 9.8
    USN-7166-1 167 CVEs

    linux, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15, 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: - ARM32 architecture; - RISC-V architecture; - S390 architecture; - x86 archite…

    first Dec 17, 2024
  • Critical max 10.0
    USN-7154-1 402 CVEs

    linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oem-6.8, linux-oracle, linux-oracle-6.8, 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; - MIPS architecture; - PowerPC architecture; - RISC-V arc…

    first Dec 12, 2024
  • Critical max 9.8
    USN-7294-1 144 CVEs 2 exploited

    linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-ibm-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: - ARM64 architecture; - Block layer subsystem; - ACPI drivers; - Drivers core; …

    first Feb 26, 2025
  • Critical max 9.8
    USN-8273-1 3 CVEs

    linux, linux-aws, linux-aws-5.4, linux-aws-fips, linux-azure, linux-azure-5.4, linux-azure-fips, linux-bluefield, linux-fips, linux-gcp, linux-gcp-5.4, linux-gcp-fips, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, 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: - Network drivers; - NVME drivers; - IPv4 networking; (CVE-2024-50304, CVE-2026…

    first May 19, 2026
  • Critical max 9.8
    USN-7383-1 108 CVEs

    linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, 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: - ARM64 architecture; - x86 architecture; - Block layer subsystem; - Drivers co…

    first Mar 27, 2025
  • Critical max 9.8
    USN-8548-2 20 CVEs

    linux, linux-aws, linux-kvm vulnerabilities

    It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. (C…

    first Aug 13, 2026
  • Critical max 9.2
    USN-8956-2 1 CVE 1 exploited

    brotli vulnerability

    USN-8956-1 fixed a vulnerability in Brotli. This update provides the corresponding fixes for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: It was discovered that Brotli incorrectly handled certain compressed streams. A r…

    first Oct 27, 2026
  • Critical max 9.2
    USN-8956-1 1 CVE 1 exploited

    brotli vulnerability

    It was discovered that Brotli incorrectly handled certain compressed streams. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code.

    first Oct 26, 2026
  • Critical max 9.8
    USN-8548-1 20 CVEs

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

    It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. (C…

    first Jul 15, 2026
  • Critical max 9.8
    USN-8274-1 5 CVEs

    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: - Network drivers; - BTRFS file system; - Sun RPC protocol; - XFRM subsystem; (…

    first May 19, 2026
  • Critical max 9.8
    USN-8291-1 4 CVEs

    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: - SMB network file system; - Netfilter; - io_uring subsystem; (CVE-2024-35862, …

    first May 21, 2026
  • Critical max 9.8
    USN-7088-1 162 CVEs

    linux, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4 vulnerabilities

    Ziming Zhang discovered that the VMware Virtual GPU DRM driver in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-36402) Several security issues were discover…

    first Oct 31, 2024