The version of kernel installed on the remote host is prior to 5.10.82-83.359. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2024-049 advisory.

  - A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could     happen if removing device (that is not common to remove video card physically without power-off, but same     happens if unbind the driver). (CVE-2020-27820)

  - A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the     way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del()     together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A     privileged local user could use this flaw to crash the system or escalate their privileges on the system.
    (CVE-2021-3640)

  - A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP     association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and     the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)

  - A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and     bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special     privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel     versions prior to 5.16 rc2. (CVE-2021-4001)

  - A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some     regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the     memory pages. A local user could use this flaw to get unauthorized access to some data. (CVE-2021-4002)

  - dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel     through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU     display drivers debug filesystem. There are no checks on size within parse_write_buffer_into_params when     it uses the size of copy_from_user to copy a userspace buffer into a 40-byte heap buffer. (CVE-2021-42327)

  - A use-after-free flaw was found in the Linux kernel's Ext4 File System in how a user triggers several file     operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially     escalate their privileges on the system. Only if patch 9a2544037600 (ovl: fix use after free in struct     ovl_aio_req) not applied yet, the kernel could be affected. (CVE-2023-1252)

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

Detections

Analytics

Amazon Linux 2 : kernel (ALASKERNEL-5.10-2024-049)

high Nessus Plugin ID 190033

Version 1.4

Version 1.3

Version 1.2

Version 1.0

Version 1.4 May 16, 2024, 8:03 AM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202405160803
Version 1.3 May 16, 2024, 12:59 AM CVE (set "CVE" coverage to "CVE-2020-27820,CVE-2021-3640,CVE-2021-3772,CVE-2021-4001,CVE-2021-4002,CVE-2021-42327,CVE-2023-1252") Detection (updated detection logic) Exploit attributes ("Exploitability ease" changed from "Exploits are available" to "No known exploits are available") Plugin metadata Plugin Feed: 202405160059
Version 1.2 Feb 20, 2024, 3:54 PM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Plugin Feed: 202402201554
Version 1.0 Feb 6, 2024, 12:33 PM New Plugin Feed: 202402061233