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Ubuntu Security Notices (USN)

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

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  • 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 …

  • 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
  • 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
  • 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
  • High max 7.8
    USN-5302-1 6 CVEs 1 exploited

    linux-oem-5.14 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) Brendan Dolan-G…

    first Feb 22, 2022
  • High max 7.8
    USN-5442-1 3 CVEs

    linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-azure-fde, linux-gcp, linux-gke, linux-gke-5.4, linux-hwe-5.4, linux-ibm, linux-kvm 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-5443-2 2 CVEs

    linux-gcp-5.13, linux-oracle, linux-oracle-5.13 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 8.1
    USN-8739-1 15 CVEs

    imagemagick vulnerabilities

    It was discovered that ImageMagick incorrectly handled certain images. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LT…

    first Sep 8, 2026
  • High max 7.5
    USN-8670-3 1 CVE

    curl vulnerability

    USN-8670-1 fixed a vulnerability in curl. This update provides the corresponding update for Ubuntu 26.04 LTS. Original advisory details: Joshua Rogers discovered that curl incorrectly handled reusing connections when client certificate settings changed. This …

    first Sep 8, 2026
  • High max 8.8
    USN-8738-1 5 CVEs

    ffmpeg vulnerabilities

    It was discovered that FFmpeg incorrectly handled certain video frames when using the hqdn3d filter. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-66036) Adrian Junge discovered that FFmpeg incorre…

    first Sep 8, 2026
  • High max 8.7
    USN-5094-1 6 CVEs

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

    It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to exp…

    first Sep 29, 2021
  • High max 8.8
    USN-4226-1 28 CVEs

    linux, linux-aws, linux-aws-5.0, linux-azure, linux-gcp, linux-gke-5.0, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities

    Michael Hanselmann discovered that the CIFS implementation in the Linux kernel did not sanitize paths returned by an SMB server. An attacker controlling an SMB server could use this to overwrite arbitrary files. (CVE-2019-10220) It was discovered that a heap-…

    first Jan 7, 2020
  • High max 7.1
    USN-4209-1 3 CVEs

    linux, linux-aws, linux-aws-5.0, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities

    Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel did not properly handle reference counting during memory mapping operations when used in conjunction with AUFS. A local attacker could use this to cause a denial of service (syste…

    first Dec 2, 2019
  • High max 7.8
    USN-4186-1 13 CVEs 1 exploited

    linux, linux-aws, linux-kvm vulnerabilities

    Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Giorgi Maisuradze, Moritz Lipp, Michael Schwarz, Daniel Gruss, and Jo Van Bulck discovered that Intel processors using Transactional Synchro…

    first Nov 13, 2019
  • High max 8.7
    USN-5094-2 5 CVEs

    linux-raspi2 vulnerabilities

    It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to exp…

    first Sep 30, 2021
  • High max 7.1
    USN-4208-1 12 CVEs

    linux, linux-aws, linux-gcp, linux-gcp-5.3, linux-kvm, linux-oracle vulnerabilities

    Jann Horn discovered that the OverlayFS and ShiftFS Drivers in the Linux kernel did not properly handle reference counting during memory mapping operations when used in conjunction with AUFS. A local attacker could use this to cause a denial of service (syste…

    first Dec 2, 2019
  • High max 7.1
    USN-4184-1 14 CVEs

    linux, linux-aws, linux-azure, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem-osp1, linux-oracle, linux-raspi2 vulnerabilities

    Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Giorgi Maisuradze, Moritz Lipp, Michael Schwarz, Daniel Gruss, and Jo Van Bulck discovered that Intel processors using Transactional Synchro…

    first Nov 13, 2019
  • High max 7.5
    USN-4163-1 10 CVEs

    linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

    It was discovered that a race condition existed in the ARC EMAC ethernet driver for the Linux kernel, resulting in a use-after-free vulnerability. An attacker could use this to cause a denial of service (system crash). (CVE-2016-10906) It was discovered that …

    first Oct 22, 2019
  • High max 7.5
    USN-4163-2 10 CVEs

    linux-lts-xenial, linux-aws vulnerabilities

    USN-4163-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. It was discovered that a race condition existe…

    first Oct 23, 2019
  • High max 7.8
    USN-4162-2 10 CVEs

    linux-azure vulnerabilities

    USN-4162-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux kernel for Microsoft Azure Cloud systems for Ubuntu 14.04 ESM. It was discovered that the RSI 91x Wi-Fi driver in the Linux…

    first Oct 23, 2019
  • High max 7.8
    USN-4162-1 10 CVEs

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

    It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or po…

    first Oct 22, 2019
  • High max 7.8
    USN-4157-2 9 CVEs

    linux-hwe, linux-azure, linux-gcp, linux-gke-5.0 vulnerabilities

    USN-4157-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.04. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.04 for Ubuntu 18.04 LTS. Wen Huang discovered that the Marvell Wi-Fi device dri…

    first Oct 22, 2019
  • High max 8.1
    USN-8734-1 4 CVEs

    php7.0 vulnerabilities

    It was discovered that PHP incorrectly handled Apache map decoding in SOAP servers with a typemap configured. A remote attacker could use this issue to cause a NULL pointer dereference, resulting in a denial of service. (CVE-2026-7262) It was discovered that …

    first Sep 7, 2026
  • High max 7.1
    USN-8731-1 1 CVE

    miniupnpd vulnerability

    It was discovered that MiniUPnPd contained an integer underflow vulnerability in SOAPAction header parsing. A remote attacker could use this issue to cause a denial of service or information disclosure by sending a malformed SOAPAction header with a single qu…

    first Sep 7, 2026
  • High max 8.0
    USN-4351-1 1 CVE

    linux-firmware vulnerability

    Eli Biham and Lior Neumann discovered that certain Bluetooth devices incorrectly validated key exchange parameters. An attacker could possibly use this issue to obtain sensitive information.

    first May 6, 2020
  • High max 8.0
    USN-4094-1 32 CVEs 1 exploited

    linux, linux-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

    It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053) Wen Xu discovered that the XFS filesystem implementation in th…

    first Aug 13, 2019
  • High max 7.6
    USN-4115-1 28 CVEs

    linux, linux-azure, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2 vulnerabilities

    Hui Peng and Mathias Payer discovered that the Option USB High Speed driver in the Linux kernel did not properly validate metadata received from the device. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2018-…

    first Sep 2, 2019
  • High max 7.2
    USN-4135-2 3 CVEs

    linux, linux-aws, linux-azure, linux-lts-trusty, linux-lts-xenial vulnerabilities

    Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS. …

    first Sep 18, 2019
  • High max 8.0
    USN-4093-1 7 CVEs 1 exploited

    linux, linux-hwe, linux-azure, linux-gcp, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

    It was discovered that a heap buffer overflow existed in the Marvell Wireless LAN device driver for the Linux kernel. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-10126) Andrei Vlad Lutas…

    first Aug 13, 2019
  • High max 7.2
    USN-4135-1 3 CVEs

    linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp, linux-gke-4.15, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

    Peter Pi discovered a buffer overflow in the virtio network backend (vhost_net) implementation in the Linux kernel. An attacker in a guest may be able to use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS. …

    first Sep 18, 2019
  • High max 8.0
    USN-4118-1 61 CVEs 1 exploited

    linux-aws vulnerabilities

    It was discovered that the alarmtimer implementation in the Linux kernel contained an integer overflow vulnerability. A local attacker could use this to cause a denial of service. (CVE-2018-13053) Wen Xu discovered that the XFS filesystem implementation in th…

    first Sep 2, 2019
  • High max 7.4
    USN-4287-1 22 CVEs

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

    It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. (CVE-2019-14615) It was discovered that the Atheros 802.…

    first Feb 18, 2020
  • High max 8.0
    USN-4095-1 8 CVEs 1 exploited

    linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

    Eli Biham and Lior Neumann discovered that the Bluetooth implementation in the Linux kernel did not properly validate elliptic curve parameters during Diffie-Hellman key exchange in some situations. An attacker could use this to expose sensitive information. …

    first Aug 13, 2019
  • High max 7.6
    USN-4147-1 18 CVEs

    linux, linux-aws, linux-azure, linux-gcp, linux-gke-5.0, linux-hwe, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities

    It was discovered that the Intel Wi-Fi device driver in the Linux kernel did not properly validate certain Tunneled Direct Link Setup (TDLS). A physically proximate attacker could use this to cause a denial of service (Wi-Fi disconnect). (CVE-2019-0136) It wa…

    first Oct 4, 2019
  • High max 7.9
    USN-4076-1 6 CVEs

    linux, linux-aws, linux-kvm, linux-raspi2 vulnerabilities

    It was discovered that a race condition existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2018-20836) It was disco…

    first Jul 25, 2019
  • High max 8.8
    USN-8722-1 3 CVEs

    libssh2 vulnerabilities

    It was discovered that libssh2 incorrectly handled certain SFTP server responses. A remote attacker controlling an SSH server could use this issue to cause libssh2 to crash or possibly execute arbitrary code. (CVE-2026-66032) It was discovered that libssh2 in…