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Ubuntu Security Notices (USN)

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

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  • High max 7.9
    USN-5979-1 9 CVEs 1 exploited

    linux-hwe-5.19 vulnerabilities

    It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs. An attacker in a guest VM could use this to expose sensitive information from the host OS or other guest …

    first Mar 28, 2023
  • High max 7.9
    USN-5975-1 31 CVEs 1 exploited

    linux-azure vulnerabilities

    Updated on 2023-04-11: Please note that when USN 5975-1 was originally published, it incorrectly included the linux-gcp kernel for Ubuntu 16.04 ESM. References to that kernel have been removed from this USN and the correct information for it has been publishe…

    first Mar 27, 2023
  • High max 8.1
    USN-5917-1 20 CVEs 1 exploited

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

    It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of…

    first Mar 3, 2023
  • High max 7.9
    USN-5924-1 29 CVEs 1 exploited

    linux-azure, linux-azure, linux-azure vulnerabilities

    It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of…

    first Mar 6, 2023
  • High max 7.9
    USN-5927-1 18 CVEs 1 exploited

    linux-azure-4.15 vulnerabilities

    It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of…

    first Mar 7, 2023
  • High max 7.9
    USN-5915-1 12 CVEs 1 exploited

    linux-oem-6.1 vulnerabilities

    It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of…

    first Mar 3, 2023
  • High max 7.8
    USN-6704-1 5 CVEs 1 exploited

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

    It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-23000) Quentin Min…

    first Mar 20, 2024
  • High max 7.8
    USN-6702-1 4 CVEs 1 exploited

    linux, linux-bluefield, linux-gcp, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities

    It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-23000) It was disc…

    first Mar 19, 2024
  • High max 7.8
    USN-6704-2 5 CVEs 1 exploited

    linux-raspi vulnerabilities

    It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-23000) Quentin Min…

    first Mar 21, 2024
  • High max 7.8
    USN-6702-2 4 CVEs 1 exploited

    linux-aws, linux-aws-5.4, linux-gcp-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp vulnerabilities

    It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-23000) It was disc…

    first Mar 20, 2024
  • High max 7.8
    USN-6716-1 12 CVEs 1 exploited

    linux-azure, linux-azure-5.4 vulnerabilities

    Wenqing Liu discovered that the f2fs file system implementation in the Linux kernel did not properly validate inode types while performing garbage collection. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, c…

    first Mar 25, 2024
  • High max 7.8
    USN-6705-1 14 CVEs 1 exploited

    linux-aws, linux-aws-5.15 vulnerabilities

    It was discovered that the DesignWare USB3 for Qualcomm SoCs driver in the Linux kernel did not properly handle certain error conditions during device registration. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-202…

    first Mar 20, 2024
  • High max 7.8
    USN-6704-4 5 CVEs 1 exploited

    linux-intel-iotg, linux-intel-iotg-5.15 vulnerabilities

    It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-23000) Quentin Min…

    first Mar 28, 2024
  • High max 7.8
    USN-6704-3 5 CVEs 1 exploited

    linux-oracle, linux-oracle-5.15 vulnerabilities

    It was discovered that the NVIDIA Tegra XUSB pad controller driver in the Linux kernel did not properly handle return values in certain error conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-23000) Quentin Min…

    first Mar 25, 2024
  • Critical max 9.8
    USN-6688-1 63 CVEs 1 exploited

    linux-oem-6.1 vulnerabilities

    Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denia…

    first Mar 11, 2024
  • High max 7.8
    USN-6025-1 10 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities

    It was discovered that the Traffic-Control Index (TCINDEX) 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-2023-1…

    first Apr 19, 2023
  • High max 7.8
    USN-6057-1 10 CVEs 1 exploited

    linux-intel-iotg vulnerabilities

    It was discovered that the Traffic-Control Index (TCINDEX) 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-2023-1…

    first May 5, 2023
  • High max 7.8
    USN-6040-1 10 CVEs 1 exploited

    linux-hwe-5.15 vulnerabilities

    It was discovered that the Traffic-Control Index (TCINDEX) 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-2023-1…

    first Apr 25, 2023
  • High max 7.8
    USN-6072-1 6 CVEs 1 exploited

    linux-oem-6.0 vulnerabilities

    It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix …

    first May 10, 2023
  • High max 7.8
    USN-6071-1 12 CVEs 1 exploited

    linux-oem-5.17 vulnerabilities

    It was discovered that the Traffic-Control Index (TCINDEX) implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix …

    first May 10, 2023
  • High max 7.5
    USN-2693-1 2 CVEs 1 exploited

    bind9 vulnerabilities

    Jonathan Foote discovered that Bind incorrectly handled certain TKEY queries. A remote attacker could use this issue with a specially crafted packet to cause Bind to crash, resulting in a denial of service. (CVE-2015-5477) Pories Ediansyah discovered that Bin…

    first Jul 28, 2015
  • High max 8.8
    USN-6426-1 3 CVEs 1 exploited

    webkit2gtk vulnerabilities

    Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting a…

    first Oct 10, 2023
  • High max 8.8
    USN-8388-1 6 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.15, linux-aws-fips, linux-fips, linux-gcp, linux-gcp-5.15, linux-gcp-fips, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iot-realtime, linux-intel-iotg, linux-kvm, linux-nvidia, linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx, 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 4, 2026
  • High max 7.8
    USN-7326-1 4 CVEs 1 exploited

    linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop 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 Mar 5, 2025
  • Medium max 5.6
    USN-5566-1 9 CVEs 1 exploited

    linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-ibm, linux-kvm, linux-oracle, linux-raspi 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
  • High max 7.8
    USN-5294-1 8 CVEs 1 exploited

    linux vulnerabilities

    It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600) Szymo…

    first Feb 18, 2022
  • High max 7.8
    USN-5278-1 21 CVEs 1 exploited

    linux-oem-5.14 vulnerabilities

    It was discovered that the rlimit tracking for user namespaces in the Linux kernel did not properly perform reference counting, leading to a use-after- free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitr…

    first Feb 9, 2022
  • High max 7.8
    USN-5338-1 13 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-azure-fde, linux-gcp, linux-gcp-5.4, linux-gke, lnux-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

    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) Jürgen Groß dis…

    first Mar 22, 2022
  • High max 7.8
    USN-5298-1 12 CVEs 1 exploited

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

    It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600) Jürge…

    first Feb 22, 2022
  • High max 7.8
    USN-5294-2 8 CVEs 1 exploited

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

    It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600) Szymo…

    first Feb 22, 2022
  • Medium max 5.6
    USN-5565-1 5 CVEs 1 exploited

    linux, linux-hwe-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15 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 5.6
    USN-5564-1 15 CVEs 1 exploited

    linux-intel-iotg 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 5.3
    USN-5560-1 13 CVEs 1 exploited

    linux, linux-aws, linux-azure-4.15, linux-dell300x, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon 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
  • High max 7.8
    USN-5295-2 5 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.13, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-oracle-5.13, linux-raspi vulnerabilities

    It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600) Jann …

    first Feb 22, 2022
  • Medium max 5.3
    USN-5560-2 13 CVEs 1 exploited

    linux-hwe, linux-aws-hwe, linux-azure, linux-gcp, linux-oracle 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
  • High max 7.8
    USN-5295-1 5 CVEs 1 exploited

    linux-hwe-5.13 vulnerabilities

    It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600) Jann …

    first Feb 18, 2022
  • High max 8.6
    USN-5377-1 15 CVEs 1 exploited

    linux-bluefield 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) Yiq…

    first Apr 13, 2022
  • Critical max 9.1
    USN-5368-1 23 CVEs 1 exploited

    linux-azure-5.13, linux-oracle-5.13 vulnerabilities

    It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in certain situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-23222) It was …

    first Apr 6, 2022
  • Critical max 9.1
    USN-5362-1 16 CVEs 3 exploited

    linux-intel-5.13 vulnerabilities

    Nick Gregory discovered that the Linux kernel incorrectly handled network offload functionality. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-25636) Enrico Barberis, Pietro Frigo, Marius Muench, He…

    first Apr 1, 2022
  • Critical max 9.1
    USN-5337-1 21 CVEs 1 exploited

    linux, linux-aws, linux-aws-5.13, linux-gcp, linux-gcp-5.13, linux-hwe-5.13, linux-kvm, linux-oracle, linux-raspi vulnerabilities

    It was discovered that the BPF verifier in the Linux kernel did not properly restrict pointer types in certain situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-23222) Yiqi Su…

    first Mar 22, 2022