In the Linux kernel, the following vulnerability has been resolved: f2fs: Require FMODE_WRITE for atomic write ioctls The F2FS ioctls for starting and committing atomic writes check for inode_owner_or_capable(), but this does not give LSMs like SELinux or Landlock an opportunity to deny the write access - if the caller's FSUID matches the inode's UID, inode_owner_or_capable() immediately returns true. There are scenarios where LSMs want to deny a process the ability to write particular files, even files that the FSUID of the process owns; but this can currently partially be bypassed using atomic write ioctls in two ways: - F2FS_IOC_START_ATOMIC_REPLACE + F2FS_IOC_COMMIT_ATOMIC_WRITE can truncate an inode to size 0 - F2FS_IOC_START_ATOMIC_WRITE + F2FS_IOC_ABORT_ATOMIC_WRITE can revert changes another process concurrently made to a file Fix it by requiring FMODE_WRITE for these operations, just like for F2FS_IOC_MOVE_RANGE. Since any legitimate caller should only be using these ioctls when intending to write into the file, that seems unlikely to break anything.

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7166-2 advisory.

    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 architecture;

    - Block layer subsystem;

    - ACPI drivers;

    - Drivers core;

    - ATA over ethernet (AOE) driver;

    - TPM device driver;

    - Clock framework and drivers;

    - Buffer Sharing and Synchronization framework;

    - EFI core;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - I2C subsystem;

    - InfiniBand drivers;

    - Input Device core drivers;

    - Mailbox framework;

    - Media drivers;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - Microsoft Azure Network Adapter (MANA) driver;

    - STMicroelectronics network drivers;

    - NTB driver;

    - Virtio pmem driver;

    - PCI subsystem;

    - x86 platform drivers;

    - S/390 drivers;

    - SCSI subsystem;

    - SPI subsystem;

    - Thermal drivers;

    - USB Device Class drivers;

    - USB Type-C Port Controller Manager driver;

    - VFIO drivers;

    - Virtio Host (VHOST) subsystem;

    - Framebuffer layer;

    - 9P distributed file system;

    - BTRFS file system;

    - Ceph distributed file system;

    - File systems infrastructure;

    - Ext4 file system;

    - F2FS file system;

    - GFS2 file system;

    - JFS file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - Network file system (NFS) superblock;

    - Bluetooth subsystem;

    - Network traffic control;

    - Network sockets;

    - TCP network protocol;

    - BPF subsystem;

    - Perf events;

    - Kernel thread helper (kthread);

    - Padata parallel execution mechanism;

    - Arbitrary resource management;

    - Static call mechanism;

    - Tracing infrastructure;

    - Memory management;

    - Ethernet bridge;

    - CAN network layer;

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - MAC80211 subsystem;

    - Multipath TCP;

    - Netfilter;

    - Netlink;

    - SCTP protocol;

    - TIPC protocol;

    - SELinux security module;

    - Simplified Mandatory Access Control Kernel framework;

    - AudioScience HPI driver;

    - Amlogic Meson SoC drivers;

    - USB sound devices; (CVE-2024-49944, CVE-2024-49907, CVE-2024-50062, CVE-2024-36893, CVE-2024-49985,     CVE-2024-49903, CVE-2024-49886, CVE-2024-50180, CVE-2024-47757, CVE-2024-49938, CVE-2024-49902,     CVE-2024-47709, CVE-2024-49884, CVE-2024-49967, CVE-2024-49977, CVE-2024-47734, CVE-2024-49954,     CVE-2024-49963, CVE-2024-47747, CVE-2024-50008, CVE-2024-47696, CVE-2024-50038, CVE-2024-46695,     CVE-2024-47705, CVE-2024-49957, CVE-2024-38538, CVE-2024-50019, CVE-2024-38544, CVE-2024-50003,     CVE-2024-50095, CVE-2024-50000, CVE-2024-49981, CVE-2024-49863, CVE-2024-47710, CVE-2024-49983,     CVE-2024-26947, CVE-2024-46852, CVE-2024-49871, CVE-2024-49936, CVE-2024-47720, CVE-2024-49881,     CVE-2024-47672, CVE-2024-50040, CVE-2024-49997, CVE-2024-50044, CVE-2023-52532, CVE-2024-47740,     CVE-2024-44942, CVE-2024-49948, CVE-2023-52621, CVE-2024-49959, CVE-2024-47718, CVE-2024-50188,     CVE-2024-47699, CVE-2024-47756, CVE-2024-47723, CVE-2024-46849, CVE-2024-50035, CVE-2024-50189,     CVE-2024-47684, CVE-2024-49900, CVE-2024-50024, CVE-2024-49851, CVE-2024-49860, CVE-2024-49924,     CVE-2024-49946, CVE-2024-44940, CVE-2023-52904, CVE-2024-47679, CVE-2024-47748, CVE-2023-52917,     CVE-2024-47735, CVE-2024-46858, CVE-2024-35904, CVE-2024-47673, CVE-2024-49878, CVE-2024-47739,     CVE-2024-49973, CVE-2024-49935, CVE-2024-49875, CVE-2024-49896, CVE-2024-47690, CVE-2024-50007,     CVE-2024-49933, CVE-2024-49958, CVE-2024-49913, CVE-2024-49883, CVE-2024-47742, CVE-2024-41016,     CVE-2024-50002, CVE-2024-49969, CVE-2024-46853, CVE-2024-50031, CVE-2024-47698, CVE-2024-47749,     CVE-2024-50059, CVE-2024-49966, CVE-2024-50093, CVE-2024-27072, CVE-2024-50186, CVE-2024-49895,     CVE-2024-38632, CVE-2024-49995, CVE-2024-38545, CVE-2024-38667, CVE-2024-36968, CVE-2024-49952,     CVE-2024-50001, CVE-2024-47697, CVE-2024-50045, CVE-2024-49856, CVE-2024-49852, CVE-2024-47712,     CVE-2023-52639, CVE-2024-49975, CVE-2024-42158, CVE-2024-49962, CVE-2024-50181, CVE-2024-42156,     CVE-2024-46855, CVE-2024-47693, CVE-2024-47670, CVE-2024-47706, CVE-2024-50184, CVE-2024-49965,     CVE-2024-39463, CVE-2024-50191, CVE-2024-49866, CVE-2024-49890, CVE-2024-49877, CVE-2024-49879,     CVE-2024-49927, CVE-2024-50039, CVE-2024-46859, CVE-2024-47674, CVE-2024-50096, CVE-2024-50013,     CVE-2024-46854, CVE-2024-49868, CVE-2024-49882, CVE-2024-47671, CVE-2024-50179, CVE-2024-44931,     CVE-2024-50046, CVE-2024-50006, CVE-2024-49892, CVE-2024-49949, CVE-2024-42079, CVE-2024-46865,     CVE-2024-47692, CVE-2024-47713, CVE-2024-47701, CVE-2024-49889, CVE-2024-49894, CVE-2024-50015,     CVE-2024-49858, CVE-2024-49955, CVE-2024-49867, CVE-2024-35951, CVE-2024-50033, CVE-2024-49982,     CVE-2024-47695, CVE-2024-50049, CVE-2024-49930, CVE-2024-50041, CVE-2024-47737, CVE-2024-47685)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7166-1 advisory.

    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 architecture;

    - Block layer subsystem;

    - ACPI drivers;

    - Drivers core;

    - ATA over ethernet (AOE) driver;

    - TPM device driver;

    - Clock framework and drivers;

    - Buffer Sharing and Synchronization framework;

    - EFI core;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - I2C subsystem;

    - InfiniBand drivers;

    - Input Device core drivers;

    - Mailbox framework;

    - Media drivers;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - Microsoft Azure Network Adapter (MANA) driver;

    - STMicroelectronics network drivers;

    - NTB driver;

    - Virtio pmem driver;

    - PCI subsystem;

    - x86 platform drivers;

    - S/390 drivers;

    - SCSI subsystem;

    - SPI subsystem;

    - Thermal drivers;

    - USB Device Class drivers;

    - USB Type-C Port Controller Manager driver;

    - VFIO drivers;

    - Virtio Host (VHOST) subsystem;

    - Framebuffer layer;

    - 9P distributed file system;

    - BTRFS file system;

    - Ceph distributed file system;

    - File systems infrastructure;

    - Ext4 file system;

    - F2FS file system;

    - GFS2 file system;

    - JFS file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - Network file system (NFS) superblock;

    - Bluetooth subsystem;

    - Network traffic control;

    - Network sockets;

    - TCP network protocol;

    - BPF subsystem;

    - Perf events;

    - Kernel thread helper (kthread);

    - Padata parallel execution mechanism;

    - Arbitrary resource management;

    - Static call mechanism;

    - Tracing infrastructure;

    - Memory management;

    - Ethernet bridge;

    - CAN network layer;

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - MAC80211 subsystem;

    - Multipath TCP;

    - Netfilter;

    - Netlink;

    - SCTP protocol;

    - TIPC protocol;

    - SELinux security module;

    - Simplified Mandatory Access Control Kernel framework;

    - AudioScience HPI driver;

    - Amlogic Meson SoC drivers;

    - USB sound devices; (CVE-2024-49944, CVE-2024-49907, CVE-2024-50062, CVE-2024-36893, CVE-2024-49985,     CVE-2024-49903, CVE-2024-49886, CVE-2024-50180, CVE-2024-47757, CVE-2024-49938, CVE-2024-49902,     CVE-2024-47709, CVE-2024-49884, CVE-2024-49967, CVE-2024-49977, CVE-2024-47734, CVE-2024-49954,     CVE-2024-49963, CVE-2024-47747, CVE-2024-50008, CVE-2024-47696, CVE-2024-50038, CVE-2024-46695,     CVE-2024-47705, CVE-2024-49957, CVE-2024-38538, CVE-2024-50019, CVE-2024-38544, CVE-2024-50003,     CVE-2024-50095, CVE-2024-50000, CVE-2024-49981, CVE-2024-49863, CVE-2024-47710, CVE-2024-49983,     CVE-2024-26947, CVE-2024-46852, CVE-2024-49871, CVE-2024-49936, CVE-2024-47720, CVE-2024-49881,     CVE-2024-47672, CVE-2024-50040, CVE-2024-49997, CVE-2024-50044, CVE-2023-52532, CVE-2024-47740,     CVE-2024-44942, CVE-2024-49948, CVE-2023-52621, CVE-2024-49959, CVE-2024-47718, CVE-2024-50188,     CVE-2024-47699, CVE-2024-47756, CVE-2024-47723, CVE-2024-46849, CVE-2024-50035, CVE-2024-50189,     CVE-2024-47684, CVE-2024-49900, CVE-2024-50024, CVE-2024-49851, CVE-2024-49860, CVE-2024-49924,     CVE-2024-49946, CVE-2024-44940, CVE-2023-52904, CVE-2024-47679, CVE-2024-47748, CVE-2023-52917,     CVE-2024-47735, CVE-2024-46858, CVE-2024-35904, CVE-2024-47673, CVE-2024-49878, CVE-2024-47739,     CVE-2024-49973, CVE-2024-49935, CVE-2024-49875, CVE-2024-49896, CVE-2024-47690, CVE-2024-50007,     CVE-2024-49933, CVE-2024-49958, CVE-2024-49913, CVE-2024-49883, CVE-2024-47742, CVE-2024-41016,     CVE-2024-50002, CVE-2024-49969, CVE-2024-46853, CVE-2024-50031, CVE-2024-47698, CVE-2024-47749,     CVE-2024-50059, CVE-2024-49966, CVE-2024-50093, CVE-2024-27072, CVE-2024-50186, CVE-2024-49895,     CVE-2024-38632, CVE-2024-49995, CVE-2024-38545, CVE-2024-38667, CVE-2024-36968, CVE-2024-49952,     CVE-2024-50001, CVE-2024-47697, CVE-2024-50045, CVE-2024-49856, CVE-2024-49852, CVE-2024-47712,     CVE-2023-52639, CVE-2024-49975, CVE-2024-42158, CVE-2024-49962, CVE-2024-50181, CVE-2024-42156,     CVE-2024-46855, CVE-2024-47693, CVE-2024-47670, CVE-2024-47706, CVE-2024-50184, CVE-2024-49965,     CVE-2024-39463, CVE-2024-50191, CVE-2024-49866, CVE-2024-49890, CVE-2024-49877, CVE-2024-49879,     CVE-2024-49927, CVE-2024-50039, CVE-2024-46859, CVE-2024-47674, CVE-2024-50096, CVE-2024-50013,     CVE-2024-46854, CVE-2024-49868, CVE-2024-49882, CVE-2024-47671, CVE-2024-50179, CVE-2024-44931,     CVE-2024-50046, CVE-2024-50006, CVE-2024-49892, CVE-2024-49949, CVE-2024-42079, CVE-2024-46865,     CVE-2024-47692, CVE-2024-47713, CVE-2024-47701, CVE-2024-49889, CVE-2024-49894, CVE-2024-50015,     CVE-2024-49858, CVE-2024-49955, CVE-2024-49867, CVE-2024-35951, CVE-2024-50033, CVE-2024-49982,     CVE-2024-47695, CVE-2024-50049, CVE-2024-49930, CVE-2024-50041, CVE-2024-47737, CVE-2024-47685)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
213131	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (AWS) vulnerabilities (USN-7166-2)	Nessus	Ubuntu Local Security Checks	critical
213097	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-7166-1)	Nessus	Ubuntu Local Security Checks	critical
213056	Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2024-12884)	Nessus	Oracle Linux Local Security Checks	critical

Detections

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CVE-2024-47740

high

Tenable Plugins

critical

critical

critical