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Ubuntu Security Notices (USN)

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

8,409 results · Feed

  • Critical max 9.8
    USN-8291-3 4 CVEs

    linux-lowlatency 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 25, 2026
  • Low max 3.5
    USN-8762-1 1 CVE

    policykit-1 vulnerability

    It was discovered that polkit incorrectly handled cookie input. A local attacker could possibly use this issue to cause polkit to crash, resulting in a denial of service, or execute arbitrary code.

    first Sep 15, 2026
  • Critical max 9.8
    USN-8291-2 4 CVEs

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

    first May 22, 2026
  • Critical max 9.8
    USN-7387-2 251 CVEs 2 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: - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V arc…

    first Mar 28, 2025
  • Critical max 9.8
    USN-7596-2 32 CVEs

    linux-azure-nvidia 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; - InfiniBand drivers; - IRQ chip drivers; - Ne…

    first Jun 25, 2025
  • Critical max 9.8
    USN-7458-1 358 CVEs 4 exploited

    linux-ibm-5.15 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 Apr 24, 2025
  • Critical max 9.8
    USN-7596-1 32 CVEs

    linux-azure, linux-azure-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: - GPIO subsystem; - GPU drivers; - InfiniBand drivers; - IRQ chip drivers; - Ne…

    first Jun 24, 2025
  • Critical max 9.8
    USN-7387-3 251 CVEs 2 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: - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V arc…

    first Mar 28, 2025
  • High max 8.8
    USN-7461-1 11 CVEs

    linux, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, 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: - GPU drivers; - Network drivers; - File systems infrastructure; - Ext4 file sy…

    first Apr 24, 2025
  • Critical max 9.8
    USN-7289-2 103 CVEs 2 exploited

    linux-azure-5.15, linux-azure-fde-5.15, 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; - x86 architecture; - Block layer subsystem; - ACPI drive…

    first Feb 25, 2025
  • Critical max 9.8
    USN-7088-4 162 CVEs

    linux-aws, linux-azure-5.4, linux-kvm, linux-oracle, linux-xilinx-zynqmp 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 Nov 7, 2024
  • Critical max 9.8
    USN-7293-1 145 CVEs 2 exploited

    linux, linux-hwe-5.4 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 Feb 26, 2025
  • Critical max 9.8
    USN-7289-1 103 CVEs 2 exploited

    linux-azure, linux-azure-fde, linux-gkeop, linux-nvidia, 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: - ARM64 architecture; - x86 architecture; - Block layer subsystem; - ACPI drive…

    first Feb 24, 2025
  • High max 7.8
    USN-7185-1 38 CVEs

    linux, linux-aws, linux-aws-hwe, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle 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) Zheng Wang discovered a use-after-fre…

    first Jan 6, 2025
  • Critical max 9.8
    USN-7462-2 14 CVEs

    linux-aws-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: - GPU drivers; - Network drivers; - File systems infrastructure; - Ext4 file sy…

    first Apr 24, 2025
  • High max 8.8
    USN-7461-3 11 CVEs

    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: - GPU drivers; - Network drivers; - File systems infrastructure; - Ext4 file sy…

    first May 2, 2025
  • Critical max 9.8
    USN-7289-3 103 CVEs 2 exploited

    linux-ibm 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; - ACPI drive…

    first Feb 25, 2025
  • High max 7.8
    USN-7233-1 15 CVEs

    linux, linux-aws, linux-aws-hwe, 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: - Multiple devices driver; - Network drivers; - Mellanox network drivers; - S/3…

    first Jan 28, 2025
  • Critical max 9.8
    USN-7332-1 36 CVEs 1 exploited

    linux, linux-aws 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; - GPIO subsystem; - GPU driver…

    first Mar 5, 2025
  • High max 7.8
    USN-7236-1 3 CVEs

    linux, linux-azure, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-lowlatency, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, 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: - Netfilter; - Network traffic control; - VMware vSockets driver; (CVE-2024-531…

    first Jan 28, 2025
  • High max 7.8
    USN-7262-1 10 CVEs

    linux, linux-aws, 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: - Multiple devices driver; - Network drivers; - Sonic Silicon Backplane drivers…

    first Feb 10, 2025
  • Critical max 9.8
    USN-7166-3 167 CVEs

    linux-hwe-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: - ARM32 architecture; - RISC-V architecture; - S390 architecture; - x86 archite…

    first Dec 20, 2024
  • High max 7.8
    USN-7262-2 10 CVEs

    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: - Multiple devices driver; - Network drivers; - Sonic Silicon Backplane drivers…

    first Feb 24, 2025
  • High max 7.8
    USN-7238-1 2 CVEs

    linux, linux-azure, linux-gcp, linux-oem-6.11, 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: - Network traffic control; - VMware vSockets driver; (CVE-2024-53103, CVE-2024-…

    first Jan 28, 2025
  • High max 7.8
    USN-7237-1 4 CVEs

    linux-oem-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: - Network drivers; - Netfilter; - Network traffic control; - VMware vSockets dr…

    first Jan 28, 2025
  • High max 7.8
    USN-7185-2 38 CVEs

    linux-azure, linux-azure-4.15 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) Zheng Wang discovered a use-after-fre…

    first Jan 9, 2025
  • High max 8.8
    USN-7173-1 16 CVEs

    linux, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-raspi vulnerabilities

    Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could possibly trigger this vulnerability to cause a denial of service. (CVE-2022-3809…

    first Dec 17, 2024
  • High max 7.8
    USN-7167-1 3 CVEs

    linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-ibm, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, 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: - Ext4 file system; - Network traffic control; - VMware vSockets driver; (CVE-2…

    first Dec 17, 2024
  • High max 7.8
    USN-7236-2 3 CVEs

    linux-lowlatency-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: - Netfilter; - Network traffic control; - VMware vSockets driver; (CVE-2024-531…

    first Jan 29, 2025
  • High max 8.8
    USN-7195-2 39 CVEs

    linux-azure-5.4 vulnerabilities

    Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could possibly trigger this vulnerability to cause a denial of service. (CVE-2022-3809…

    first Jan 14, 2025
  • High max 7.8
    USN-7183-1 33 CVEs

    linux, linux-lts-xenial vulnerabilities

    Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-confusion error. A physically proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-202…

    first Jan 6, 2025
  • High max 7.8
    USN-7159-3 23 CVEs

    linux-bluefield, 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: - ARM32 architecture; - ARM64 architecture; - S390 architecture; - x86 architec…

    first Dec 17, 2024
  • Critical max 9.1
    USN-7428-1 20 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

    Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a gu…

    first Apr 9, 2025
  • High max 7.1
    USN-7850-1 2 CVEs 1 exploited

    linux 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 Oct 30, 2025
  • Critical max 9.8
    USN-7392-2 154 CVEs 2 exploited

    linux-azure-fips, linux-gcp-fips 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-6766-1 91 CVEs

    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-ibm, linux-ibm-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15 vulnerabilities

    It was discovered that the Open vSwitch implementation in the Linux kernel could overflow its stack during recursive action operations under certain conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2024-1151) Sande…

    first May 7, 2024
  • Critical max 9.8
    USN-7391-1 153 CVEs 2 exploited

    linux, linux-hwe-5.4 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) Several security…

    first Mar 28, 2025
  • High max 8.8
    USN-7684-3 5 CVEs

    linux-aws, 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: - SCSI subsystem; - TTY drivers; - Ext4 file system; - Bluetooth subsystem; - U…

    first Jul 31, 2025
  • High max 8.8
    USN-7684-2 5 CVEs

    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: - SCSI subsystem; - TTY drivers; - Ext4 file system; - Bluetooth subsystem; - U…

    first Jul 31, 2025
  • Critical max 9.8
    USN-7421-1 256 CVEs 2 exploited

    linux-azure-5.15, 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: - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V arc…

    first Apr 7, 2025