The version of kernel installed on the remote host is prior to 5.4.172-90.336. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2022-021 advisory.

    2025-01-31: CVE-2021-47505 was added to this advisory.

    2025-01-31: CVE-2021-47506 was added to this advisory.

    2024-12-05: CVE-2021-47566 was added to this advisory.

    2024-12-05: CVE-2021-47542 was added to this advisory.

    2024-12-05: CVE-2021-47538 was added to this advisory.

    2024-12-05: CVE-2021-47507 was added to this advisory.

    2024-11-08: CVE-2021-47548 was added to this advisory.

    2024-08-01: CVE-2021-47603 was added to this advisory.

    2024-08-01: CVE-2021-47609 was added to this advisory.

    2024-08-01: CVE-2021-47606 was added to this advisory.

    2024-08-01: CVE-2021-47579 was added to this advisory.

    2024-08-01: CVE-2021-47589 was added to this advisory.

    2024-08-01: CVE-2021-47597 was added to this advisory.

    2024-08-01: CVE-2021-47588 was added to this advisory.

    2024-08-01: CVE-2021-47598 was added to this advisory.

    2024-08-01: CVE-2021-47576 was added to this advisory.

    2024-08-01: CVE-2021-47600 was added to this advisory.

    2024-08-01: CVE-2021-47097 was added to this advisory.

    2024-07-03: CVE-2021-47541 was added to this advisory.

    2024-05-23: CVE-2022-20166 was added to this advisory.

    2024-04-25: CVE-2021-46936 was added to this advisory.

    2024-04-25: CVE-2021-46929 was added to this advisory.

    2024-04-25: CVE-2021-46934 was added to this advisory.

    2023-10-12: CVE-2021-3923 was added to this advisory.

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28711)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28712)

    A denial of service flaw for virtual machine guests in the Linux kernel's Xen hypervisor subsystem was     found in the way users call some interrupts with high frequency from one of the guests.A local user could     use this flaw to starve the resources resulting in a denial of service. (CVE-2021-28713)

    Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: The timeout could even never trigger if the guest manages to have only one free     slot in its RX queue ring page and the next package would require more than one free slot, which may be     the case when using GSO, XDP, or software hashing. (CVE-2021-28714)

    Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is     ready to process them. There are some measures taken for avoiding to pile up too much data, but those can     be bypassed by the guest: There is a timeout how long the client side of an interface can stop consuming     new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default).
    Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time.
    (CVE-2021-28715)

    A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a     privileged local account can leak kernel stack information when issuing commands to the     /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it     can be further used to defeat existing kernel protection mechanisms. (CVE-2021-3923)

    A flaw memory leak in the Linux kernel's eBPF for the Simulated networking device driver in the way user     uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this     flaw to get unauthorized access to some data. (CVE-2021-4135)

    A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size     increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS     filesystem otherwise not accessible to them. (CVE-2021-4155)

    An out-of-bounds write flaw was found in the Linux kernel's Aquantia AQtion Ethernet card Atlantic driver     in the way the ethernet card provides malicious input to the driver. This flaw allows a local user to     emulate the networking device and crash the system. The highest threat from this vulnerability is to     confidentiality, integrity, as well as system availability. (CVE-2021-43975)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: use call_rcu to free endpoint (CVE-2021-46929)

    In the Linux kernel, the following vulnerability has been resolved:

    i2c: validate user data in compat ioctl

    Wrong user data may cause warning in i2c_transfer(), ex: zero msgs.Userspace should not be able to trigger     warnings, so this patch addsvalidation checks for user data in compact ioctl to prevent reportedwarnings     (CVE-2021-46934)

    In the Linux kernel, the following vulnerability has been resolved:

    net: fix use-after-free in tw_timer_handler (CVE-2021-46936)

    In the Linux kernel, the following vulnerability has been resolved:

    Input: elantech - fix stack out of bound access in elantech_change_report_id() (CVE-2021-47097)

    In the Linux kernel, the following vulnerability has been resolved:

    aio: fix use-after-free due to missing POLLFREE handling (CVE-2021-47505)

    In the Linux kernel, the following vulnerability has been resolved:

    nfsd: fix use-after-free due to delegation race (CVE-2021-47506)

    In the Linux kernel, the following vulnerability has been resolved:

    nfsd: Fix nsfd startup race (again) (CVE-2021-47507)

    In the Linux kernel, the following vulnerability has been resolved:

    rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer() (CVE-2021-47538)

    In the Linux kernel, the following vulnerability has been resolved:

    net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources() (CVE-2021-47541)

    In the Linux kernel, the following vulnerability has been resolved:

    net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings() (CVE-2021-47542)

    In the Linux kernel, the following vulnerability has been resolved:

    ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()     (CVE-2021-47548)

    In the Linux kernel, the following vulnerability has been resolved:

    proc/vmcore: fix clearing user buffer by properly using clear_user() (CVE-2021-47566)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select() (CVE-2021-47576)

    In the Linux kernel, the following vulnerability has been resolved:

    ovl: fix warning in ovl_create_real() (CVE-2021-47579)

    In the Linux kernel, the following vulnerability has been resolved:

    sit: do not call ipip6_dev_free() from sit_init_net() (CVE-2021-47588)

    In the Linux kernel, the following vulnerability has been resolved:

    igbvf: fix double free in `igbvf_probe` (CVE-2021-47589)

    In the Linux kernel, the following vulnerability has been resolved:

    inet_diag: fix kernel-infoleak for UDP sockets (CVE-2021-47597)

    In the Linux kernel, the following vulnerability has been resolved:

    sch_cake: do not call cake_destroy() from cake_init() (CVE-2021-47598)

    In the Linux kernel, the following vulnerability has been resolved:

    dm btree remove: fix use after free in rebalance_children() (CVE-2021-47600)

    In the Linux kernel, the following vulnerability has been resolved:

    audit: improve robustness of the audit queue handling (CVE-2021-47603)

    In the Linux kernel, the following vulnerability has been resolved:

    net: netlink: af_netlink: Prevent empty skb by adding a check on len. (CVE-2021-47606)

    In the Linux kernel, the following vulnerability has been resolved:

    firmware: arm_scpi: Fix string overflow in SCPI genpd driver (CVE-2021-47609)

    A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem     Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in     case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local     user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to     legacy handling) could use this flaw to escalate their privileges on the system. (CVE-2022-0185)

    In various methods of kernel base drivers, there is a possible out of bounds write due to a heap buffer     overflow. This could lead to local escalation of privilege with System execution privileges needed. User     interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
    A-182388481References: Upstream kernel (CVE-2022-20166)

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

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

Detections

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Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-021)

high Nessus Plugin ID 160423

Version 1.20