The version of kernel installed on the remote host is prior to 5.10.75-79.358. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2022-007 advisory.

    A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users     do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.
    (CVE-2021-20321)

    This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel     5.14-rc3. An attacker must first obtain the ability to execute low-privileged code on the target system in     order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The     issue results from the lack of proper validation of user-supplied eBPF programs, which can result in a     type confusion condition. An attacker can leverage this vulnerability to escalate privileges and execute     arbitrary code in the context of the kernel. Was ZDI-CAN-14689. (CVE-2021-34866)

    A flaw was found in the Linux kernel. A memory leak in the ccp-ops crypto driver can allow attackers to     cause a denial of service. This vulnerability is similar with the older CVE-2019-18808. The highest threat     from this vulnerability is to system availability. (CVE-2021-3744)

    A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker     to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat     from this vulnerability is to system availability. (CVE-2021-3764)

    An out-of-bounds (OOB) memory write flaw was found in prealloc_elems_and_freelist in kernel/bpf/stackmap.c     in the bpf in the Linux kernel. In this flaw, the multiplication to calculate the size could lead to an     integer overflow which could allow a local attacker, with a special user privilege, to gain access to out-     of-bounds memory leading to a system crash or a leak of internal kernel information. (CVE-2021-41864)

    A flaw was discovered in the cryptographic receive code in the Linux kernel's implementation of     transparent interprocess communication. An attacker, with the ability to send TIPC messages to the target,     can corrupt memory and escalate privileges on the target system. (CVE-2021-43267)

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

    binder: make sure fd closes complete (CVE-2021-47360)

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

    irqchip/gic-v3-its: Fix potential VPE leak on error (CVE-2021-47373)

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

    blktrace: Fix uaf in blk_trace access after removing by sysfs (CVE-2021-47375)

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

    bpf: Add oversize check before call kvcalloc() (CVE-2021-47376)

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

    nvme-rdma: destroy cm id before destroy qp to avoid use after free (CVE-2021-47378)

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

    blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd (CVE-2021-47379)

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

    tty: Fix out-of-bound vmalloc access in imageblit (CVE-2021-47383)

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

    hwmon: (w83793) Fix NULL pointer dereference by removing unnecessary structure field (CVE-2021-47384)

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

    hwmon: (w83791d) Fix NULL pointer dereference by removing unnecessary structure field (CVE-2021-47386)

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

    cpufreq: schedutil: Use kobject release() method to free sugov_tunables (CVE-2021-47387)

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

    KVM: x86: Fix stack-out-of-bounds memory access from ioapic_write_indirect() (CVE-2021-47390)

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

    HID: betop: fix slab-out-of-bounds Write in betop_probe (CVE-2021-47404)

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

    ext4: add error checking to ext4_ext_replay_set_iblocks() (CVE-2021-47406)

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

    KVM: x86: Handle SRCU initialization failure during page track init (CVE-2021-47407)

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

    netfilter: conntrack: serialize hash resizes and cleanups (CVE-2021-47408)

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

    nvmem: Fix shift-out-of-bound (UBSAN) with byte size cells (CVE-2021-47497)

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

Analytics

Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-007)

critical Nessus Plugin ID 160447

Version 1.12

Version 1.11

Version 1.10

Version 1.9

Version 1.8

Version 1.5

Version 1.12 Mar 17, 2025, 12:07 PM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Exploit attributes ("Exploited by malware" set to "True") Plugin Feed: 202503171207
Version 1.11 Mar 15, 2025, 2:36 AM CVE (set "CVE" coverage to "CVE-2021-3744,CVE-2021-3764,CVE-2021-20321,CVE-2021-34866,CVE-2021-41864,CVE-2021-43267,CVE-2021-47360,CVE-2021-47373,CVE-2021-47375,CVE-2021-47376,CVE-2021-47378,CVE-2021-47379,CVE-2021-47383,CVE-2021-47384,CVE-2021-47386,CVE-2021-47387,CVE-2021-47390,CVE-2021-47404,CVE-2021-47406,CVE-2021-47407,CVE-2021-47408,CVE-2021-47497") CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Exploit attributes ("Exploitability ease" changed from "Exploits are available" to "No known exploits are available") Exploit attributes ("Exploited by malware" changed from "True" to none) Plugin metadata Plugin Feed: 202503150236
Version 1.10 Dec 17, 2024, 9:25 AM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Exploit attributes ("Exploited by malware" set to "True") Plugin Feed: 202412170925
Version 1.9 Dec 11, 2024, 3:04 PM CVE (set "CVE" coverage to "CVE-2021-3744,CVE-2021-3764,CVE-2021-20321,CVE-2021-34866,CVE-2021-41864,CVE-2021-43267,CVE-2021-47360,CVE-2021-47373,CVE-2021-47376,CVE-2021-47378,CVE-2021-47379,CVE-2021-47384,CVE-2021-47386,CVE-2021-47387,CVE-2021-47390,CVE-2021-47404,CVE-2021-47406,CVE-2021-47407,CVE-2021-47408") CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Exploit attributes ("Exploitability ease" changed from "Exploits are available" to "No known exploits are available") Exploit attributes ("Exploited by malware" changed from "True" to none) Plugin metadata Plugin Feed: 202412111504
Version 1.8 Nov 12, 2024, 8:09 AM Exploit attributes ("Exploitability ease" changed from "No known exploits are available" to "Exploits are available") Exploit attributes ("Exploited by malware" set to "True") Plugin Feed: 202411120809
Version 1.5 Sep 5, 2023, 10:10 PM Detection Plugin requirements Plugin Feed: 202309052210