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Ubuntu Security Notices (USN)

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

8,371 results · Feed

  • Medium max 5.9
    USN-8952-2 1 CVE

    python-tornado regression

    USN-8952-1 fixed vulnerabilities in Tornado. Unfortunately that update was incomplete due to an incomplete fix for CVE-2026-103263, which broke static file serving for applications that subclass Tornado's StaticFileHandler, such as Jupyter, and could introduc…

    first Nov 6, 2026
  • Critical max 10.0
    USN-8875-1 951 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.15, linux-aws-fips, linux-azure, linux-azure-5.15, linux-azure-fde-5.15, linux-azure-fips, linux-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iot-realtime, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-realtime, linux-xilinx-zynqmp vulnerabilities

    It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (…

    first Oct 6, 2026
  • Critical max 10.0
    USN-8575-1 758 CVEs

    linux, linux-gcp, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-realtime, linux-xilinx-zynqmp vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 21, 2026
  • Critical max 10.0
    USN-8963-1 2016 CVEs 1 exploited

    linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx vulnerabilities

    Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel, leading to use-after-free vulnerabilities. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1205) It…

    first Nov 3, 2026
  • Critical max 9.8
    USN-8567-1 891 CVEs

    linux, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-realtime, linux-realtime-6.8 vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 20, 2026
  • Critical max 10.0
    USN-8728-3 1417 CVEs 2 exploited

    linux-oracle-7.0 vulnerabilities

    It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB) invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to me…

    first Sep 29, 2026
  • Critical max 9.8
    USN-8665-1 912 CVEs

    linux-raspi, linux-raspi-realtime vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Aug 20, 2026
  • Critical max 10.0
    USN-8876-1 722 CVEs 1 exploited

    linux-azure-fde vulnerabilities

    It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (…

    first Oct 6, 2026
  • Critical max 10.0
    USN-8575-2 758 CVEs

    linux-aws, linux-aws-5.15, linux-aws-fips, linux-fips, linux-ibm, linux-nvidia vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 23, 2026
  • Critical max 10.0
    USN-8877-1 952 CVEs 1 exploited

    linux-gcp, linux-gcp-fips vulnerabilities

    It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (…

    first Oct 6, 2026
  • Critical max 10.0
    USN-8879-1 972 CVEs 1 exploited

    linux-oracle-5.15 vulnerabilities

    It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (…

    first Oct 6, 2026
  • Critical max 10.0
    USN-8878-1 973 CVEs 1 exploited

    linux-gcp-5.15 vulnerabilities

    It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (…

    first Oct 6, 2026
  • Critical max 10.0
    USN-8875-2 951 CVEs 1 exploited

    linux-nvidia vulnerabilities

    It was discovered that the i.MX clock driver in the Linux kernel did not properly handle certain memory allocation failure conditions, leading to a null pointer dereference vulnerability. A local attacker could possibly use this to cause a denial of service (…

    first Oct 9, 2026
  • Critical max 9.8
    USN-8606-1 1210 CVEs

    linux-azure, linux-azure-6.8 vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 24, 2026
  • Critical max 10.0
    USN-8728-1 1417 CVEs 2 exploited

    linux-gcp-7.0 vulnerabilities

    It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB) invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to me…

    first Sep 7, 2026
  • Critical max 9.8
    USN-8663-1 862 CVEs

    linux-nvidia, linux-nvidia-7.0 vulnerabilities

    It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. …

    first Aug 20, 2026
  • Critical max 9.8
    USN-8664-1 859 CVEs

    linux-nvidia-bos vulnerabilities

    It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. …

    first Aug 20, 2026
  • Critical max 10.0
    USN-8728-2 1417 CVEs 2 exploited

    linux-azure-7.0 vulnerabilities

    It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB) invalidation before memory writes made through the invalidated translation were globally observed. A local attacker could possibly use this to write to me…

    first Sep 22, 2026
  • Critical max 9.8
    USN-8607-1 1205 CVEs

    linux-azure-fde vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 24, 2026
  • Critical max 10.0
    USN-8576-2 756 CVEs

    linux-nvidia-tegra, linux-nvidia-tegra-igx vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 23, 2026
  • Critical max 9.8
    USN-8574-2 913 CVEs

    linux-fips, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 23, 2026
  • Critical max 9.8
    USN-8618-1 846 CVEs

    linux-aws, linux-raspi vulnerabilities

    It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. …

    first Jul 28, 2026
  • Critical max 10.0
    USN-8597-1 560 CVEs

    linux-ibm-5.15 vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 23, 2026
  • Critical max 10.0
    USN-8620-3 762 CVEs

    linux-intel-iot-realtime, linux-intel-iotg-5.15 vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 31, 2026
  • Critical max 9.8
    USN-8574-3 913 CVEs

    linux-ibm, linux-ibm-6.8, linux-nvidia-tegra, linux-xilinx vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 28, 2026
  • Critical max 9.8
    USN-8619-1 1209 CVEs

    linux-hwe-6.8 vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 28, 2026
  • Critical max 10.0
    USN-8620-4 762 CVEs

    linux-intel-iotg vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 31, 2026
  • Critical max 9.8
    USN-8596-1 913 CVEs

    linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 23, 2026
  • Critical max 10.0
    USN-8620-1 762 CVEs

    linux-azure-5.15, linux-azure-fde-5.15, linux-oracle-5.15 vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 28, 2026
  • Critical max 9.8
    USN-8593-1 796 CVEs

    linux-ibm, linux-oracle vulnerabilities

    It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. …

    first Jul 23, 2026
  • Critical max 9.8
    USN-8603-1 1030 CVEs

    linux-azure, linux-azure-fde vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 24, 2026
  • Critical max 10.0
    USN-8610-1 757 CVEs

    linux-azure-fde vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 24, 2026
  • Critical max 10.0
    USN-8668-2 763 CVEs

    linux-raspi vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Sep 21, 2026
  • Critical max 10.0
    USN-8668-1 763 CVEs

    linux-gcp-5.15 vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Aug 21, 2026
  • Critical max 10.0
    USN-8620-2 762 CVEs

    linux-azure-fips vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 29, 2026
  • Critical max 9.8
    USN-8608-1 914 CVEs

    linux-azure-fips vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 24, 2026
  • Critical max 9.8
    USN-8595-3 912 CVEs

    linux-aws-6.8, linux-aws-fips vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 28, 2026
  • Critical max 9.8
    USN-8566-1 444 CVEs

    linux, linux-gcp, linux-gke, linux-realtime vulnerabilities

    It was discovered that some AMD Zen 2 processors did not properly isolate shared resources in the operation cache. A local attacker could possibly use this issue to corrupt instructions executed at a higher privilege level, resulting in privilege escalation. …

    first Jul 20, 2026
  • Critical max 10.0
    USN-8576-1 756 CVEs

    linux-nvidia-tegra-5.15 vulnerabilities

    Maxim Suhanov discovered that the NTFS file system implementation in the Linux kernel did not properly validate file name length in certain situations, leading to an out-of-bounds read. An attacker could use this to construct a malicious NTFS image that, when…

    first Jul 21, 2026
  • Critical max 9.8
    USN-8609-1 1206 CVEs

    linux-azure-fde-6.8 vulnerabilities

    It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. (CVE-2025-54505) It was discovered that some AMD Zen 2 pro…

    first Jul 24, 2026