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Ubuntu Security Notices (USN)

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

8,435 results · Feed

  • Critical max 9.8
    USN-8666-3 32 CVEs

    linux-gcp-fips vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 27, 2026
  • Critical max 9.8
    USN-8666-2 32 CVEs

    linux-azure-5.4, linux-azure-fips vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 25, 2026
  • Critical max 9.8
    USN-8661-4 21 CVEs

    linux-aws-5.15, linux-gcp-5.15 vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Sep 2, 2026
  • Critical max 9.8
    USN-8645-1 35 CVEs

    linux-oracle vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 18, 2026
  • Critical max 9.8
    USN-8630-5 17 CVEs

    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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network…

    first Aug 25, 2026
  • Critical max 9.8
    USN-8630-4 17 CVEs

    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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network…

    first Aug 20, 2026
  • Critical max 9.8
    USN-8630-3 17 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network…

    first Aug 18, 2026
  • Critical max 9.8
    USN-8661-3 21 CVEs

    linux-fips, linux-gke vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 27, 2026
  • Critical max 9.8
    USN-8661-2 21 CVEs

    linux-lowlatency vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 21, 2026
  • Critical max 9.8
    USN-8637-1 23 CVEs

    linux-oem-7.0 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Thunderbolt and …

    first Aug 13, 2026
  • Critical max 9.8
    USN-8631-2 18 CVEs

    linux-oracle vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 13, 2026
  • Critical max 9.8
    USN-8630-2 17 CVEs

    linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia-tegra, 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network…

    first Aug 13, 2026
  • Critical max 9.8
    USN-8660-1 19 CVEs

    linux-gcp, linux-gke 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Network traffic …

    first Aug 20, 2026
  • Critical max 9.8
    USN-8656-1 21 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Mellanox network…

    first Aug 20, 2026
  • Critical max 9.8
    USN-8631-3 18 CVEs

    linux-nvidia-tegra-igx vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 13, 2026
  • Critical max 9.8
    USN-8629-1 18 CVEs

    linux, linux-aws, linux-azure, linux-azure-fde, linux-ibm, 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Network traffic …

    first Aug 12, 2026
  • Critical max 9.8
    USN-8629-2 18 CVEs

    linux-aws-7.0 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Network traffic …

    first Aug 17, 2026
  • Critical max 9.8
    USN-8631-4 18 CVEs

    linux-azure-fde-5.15 vulnerabilities

    Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this…

    first Aug 17, 2026
  • Critical max 9.8
    USN-8629-3 18 CVEs

    linux-hwe-7.0 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: - x86 architecture; - InfiniBand drivers; - Network drivers; - Network traffic …

    first Aug 18, 2026
  • Unscored
    USN-8571-2 0 CVEs

    apache2 regression

    USN-8571-1 fixed vulnerabilities in Apache HTTP Server. That fix was incomplete due to a missing library symbol, resulting in a regression that could cause Apache HTTP Server to fail to start when HTTP/2 proxying was enabled. This update fixes the problem. We…

    first Sep 10, 2026
  • Critical max 9.8
    USN-8748-1 27 CVEs

    linux-nvidia-6.17 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: - Hardware crypto device drivers; - NVIDIA Tegra memory controller driver; - Ne…

  • Medium max 6.0
    USN-8747-1 1 CVE

    beets vulnerability

    It was discovered that Beets incorrectly escaped untrusted media metadata in its web interface. An attacker could possibly use this issue to inject arbitrary HTML or execute arbitrary JavaScript code in a user's browser.

  • High max 8.8
    USN-8745-1 2 CVEs

    kissfft vulnerabilities

    It was discovered that KissFFT incorrectly handled certain large Fourier transform sizes on 32-bit architectures. An attacker could possibly use this issue to cause KissFFT to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2025-34297…

  • Medium max 6.5
    USN-8746-1 1 CVE

    libebml vulnerability

    It was discovered that libEBML incorrectly handled certain read and write operations. An attacker could possibly use this issue to cause a buffer overflow, resulting in a denial of service.

  • High max 8.1
    USN-8743-1 3 CVEs

    php8.1, php8.3, php8.5 vulnerabilities

    It was discovered that PHP incorrectly handled backslash escaping in the PostgreSQL extension. An attacker could use this issue to perform SQL injection attacks. (CVE-2026-17543) It was discovered that PHP incorrectly handled certain inputs to the bccomp() fu…

  • High max 8.7
    USN-8742-1 1 CVE

    netty vulnerability

    It was discovered that Netty incorrectly validates the bailiwick of NS records. An attacker could possibly use this issue to facilitate DNS cache poisoning attacks.

  • High max 7.0
    USN-8740-1 2 CVEs

    dotnet8, dotnet10 vulnerabilities

    Weeraphat Srisutham discovered that the .NET watch BrowserRefreshServer did not properly validate cross-origin WebSocket connections. An attacker could possibly use this issue to expose sensitive information. (CVE-2026-58649) Rajesh Chada discovered that the …

  • Critical max 9.3
    USN-8741-1 2 CVEs

    flatpak vulnerabilities

    It was discovered that Flatpak did not properly validate paths in sandbox-expose options. A malicious or compromised Flatpak app could use app-controlled symlinks to access arbitrary host files and gain code execution in the host context. This issue was addre…

  • High max 7.8
    USN-5443-1 2 CVEs

    linux, linux-aws, linux-aws-hwe, linux-aws-5.13, linux-azure, linux-azure-5.13, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke, linux-hwe, linux-hwe-5.13, linux-ibm, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi, linux-raspi2, linux-snapdragon vulnerabilities

    Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service …

    first May 24, 2022
  • High max 7.8
    USN-5339-1 6 CVEs 1 exploited

    linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-hwe, linux-gcp, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

    Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492) It was discover…

    first Mar 22, 2022
  • Medium max 5.3
    USN-5562-1 11 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

    Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service (system cr…

    first Aug 10, 2022
  • Medium max 5.5
    USN-5493-2 1 CVE

    linux-hwe-5.13 vulnerability

    It was discovered that the 8 Devices USB2CAN interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash).

    first Jul 1, 2022
  • Medium max 5.5
    USN-5493-1 1 CVE

    linux, linux-hwe vulnerability

    It was discovered that the 8 Devices USB2CAN interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash).

    first Jun 27, 2022
  • High max 8.6
    USN-5358-1 2 CVEs

    linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.13, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities

    It was discovered that the network traffic control implementation 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-2022-1055) It …

    first Mar 31, 2022
  • Unscored
    USN-5357-1 1 CVE

    linux, linux-aws, linux-azure-4.15, linux-dell300x, linux-hwe, linux-kvm, linux-snapdragon vulnerability

    It was discovered that the IPsec implementation in the Linux kernel did not properly allocate enough memory when performing ESP transformations, leading to a heap-based buffer overflow. A local attacker could use this to cause a denial of service (system cras…

    first Mar 31, 2022
  • High max 7.8
    USN-5442-2 3 CVEs

    linux-bluefield, linux-gcp-5.4, linux-gkeop, linux-gkeop-5.4, linux-ibm-5.4, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

    Kyle Zeng discovered that the Network Queuing and Scheduling subsystem of the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service …

    first Jun 1, 2022
  • High max 8.6
    USN-5358-2 2 CVEs

    linux-aws-5.4, linux-aws-5.13, linux-azure, linux-azure-5.4, linux-azure-fde, linux-gcp, linux-gcp-5.13, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-ibm, linux-ibm-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

    It was discovered that the network traffic control implementation 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-2022-1055) It …

    first Mar 31, 2022
  • Unscored
    USN-5353-1 1 CVE

    linux-oem-5.14 vulnerability

    It was discovered that the IPsec implementation in the Linux kernel did not properly allocate enough memory when performing ESP transformations, leading to a heap-based buffer overflow. A local attacker could use this to cause a denial of service (system cras…

    first Mar 28, 2022
  • Medium max 6.7
    USN-5465-1 3 CVEs

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

    It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. (CVE-2022-21499) Aaron Adams discovered that…

    first Jun 8, 2022
  • Unscored
    USN-5357-2 1 CVE

    linux-aws-hwe, linux-azure, linux-gcp, linux-gcp-4.15, linux-oracle, linux-raspi2 vulnerability

    It was discovered that the IPsec implementation in the Linux kernel did not properly allocate enough memory when performing ESP transformations, leading to a heap-based buffer overflow. A local attacker could use this to cause a denial of service (system cras…

    first Mar 31, 2022