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High 1 exploited CVE USN-5343-1 45 CVEs

linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities

Published Mar 22, 2022 · Updated Jun 29, 2026

Ecosystem: Ubuntu

Summary

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 discovered that the aufs file system in the Linux kernel did not
properly restrict mount namespaces, when mounted with the non-default
allow_userns option set. A local attacker could use this to gain
administrative privileges. (CVE-2016-2853)

It was discovered that the aufs file system in the Linux kernel did not
properly maintain POSIX ACL xattr data, when mounted with the non-default
allow_userns option. A local attacker could possibly use this to gain
elevated privileges. (CVE-2016-2854)

It was discovered that the f2fs file system in the Linux kernel did not
properly validate metadata in some situations. An attacker could use this
to construct a malicious f2fs image that, when mounted and operated on,
could cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2019-19449)

It was discovered that the XFS file system implementation in the Linux
kernel did not properly validate meta data in some circumstances. An
attacker could use this to construct a malicious XFS image that, when
mounted, could cause a denial of service. (CVE-2020-12655)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the
Linux kernel contained a reference counting error. A local attacker could
use this to cause a denial of service (system crash). (CVE-2020-25670)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the
Linux kernel did not properly deallocate memory in certain error
situations. A local attacker could use this to cause a denial of service
(memory exhaustion). (CVE-2020-25671, CVE-2020-25672)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the
Linux kernel did not properly handle error conditions in some situations,
leading to an infinite loop. A local attacker could use this to cause a
denial of service. (CVE-2020-25673)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
incorrectly handled EAPOL frames from unauthenticated senders. A physically
proximate attacker could inject malicious packets to cause a denial of
service (system crash). (CVE-2020-26139)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could
reassemble mixed encrypted and plaintext fragments. A physically proximate
attacker could possibly use this issue to inject packets or exfiltrate
selected fragments. (CVE-2020-26147)

It was discovered that the BR/EDR pin-code pairing procedure in the Linux
kernel was vulnerable to an impersonation attack. A physically proximate
attacker could possibly use this to pair to a device without knowledge of
the pin-code. (CVE-2020-26555)

It was discovered that the bluetooth subsystem in the Linux kernel did not
properly perform access control. An authenticated attacker could possibly
use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)

It was discovered that the FUSE user space file system implementation in
the Linux kernel did not properly handle bad inodes in some situations. A
local attacker could possibly use this to cause a denial of service.
(CVE-2020-36322)

It was discovered that the Infiniband RDMA userspace connection manager
implementation in the Linux kernel contained a race condition leading to a
use-after-free vulnerability. A local attacker could use this to cause a
denial of service (system crash) or possible execute arbitrary code.
(CVE-2020-36385)

It was discovered that the DRM subsystem in the Linux kernel contained
double-free vulnerabilities. A privileged attacker could possibly use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2021-20292)

It was discovered that a race condition existed in the timer implementation
in the Linux kernel. A privileged attacker could use this to cause a denial
of service. (CVE-2021-20317)

Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the
nfc implementation in the Linux kernel. A privileged local attacker could
use this issue to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2021-23134)

It was discovered that the Xen paravirtualization backend in the Linux
kernel did not properly deallocate memory in some situations. A local
attacker could use this to cause a denial of service (memory exhaustion).
(CVE-2021-28688)

It was discovered that the RPA PCI Hotplug driver implementation in the
Linux kernel did not properly handle device name writes via sysfs, leading
to a buffer overflow. A privileged attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2021-28972)

It was discovered that a race condition existed in the netfilter subsystem
of the Linux kernel when replacing tables. A local attacker could use this
to cause a denial of service (system crash). (CVE-2021-29650)

It was discovered that a race condition in the kernel Bluetooth subsystem
could lead to use-after-free of slab objects. An attacker could use this
issue to possibly execute arbitrary code. (CVE-2021-32399)

It was discovered that the CIPSO implementation in the Linux kernel did not
properly perform reference counting in some situations, leading to use-
after-free vulnerabilities. An attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2021-33033)

It was discovered that a use-after-free existed in the Bluetooth HCI driver
of the Linux kernel. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2021-33034)

Asaf Modelevsky discovered that the Intel(R) Ethernet ixgbe driver for the
Linux kernel did not properly validate large MTU requests from Virtual
Function (VF) devices. A local attacker could possibly use this to cause

Fixed packages 5

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux-aws 4.4.0-1102.107
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS linux-lts-xenial 4.4.0-222.255~14.04.1
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux 4.4.0-222.255
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-aws 4.4.0-1138.152
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS linux-kvm 4.4.0-1103.112

Vulnerabilities 45

References

  • report
    https://ubuntu.com/security/CVE-2016-2853
  • report
    https://ubuntu.com/security/CVE-2016-2854
  • report
    https://ubuntu.com/security/CVE-2018-5995
  • report
    https://ubuntu.com/security/CVE-2019-19449
  • report
    https://ubuntu.com/security/CVE-2020-12655
  • report
    https://ubuntu.com/security/CVE-2020-25670
  • report
    https://ubuntu.com/security/CVE-2020-25671
  • report
    https://ubuntu.com/security/CVE-2020-25672
  • report
    https://ubuntu.com/security/CVE-2020-25673
  • report
    https://ubuntu.com/security/CVE-2020-26139
  • report
    https://ubuntu.com/security/CVE-2020-26147
  • report
    https://ubuntu.com/security/CVE-2020-26555
  • report
    https://ubuntu.com/security/CVE-2020-26558
  • report
    https://ubuntu.com/security/CVE-2020-36322
  • report
    https://ubuntu.com/security/CVE-2020-36385
  • report
    https://ubuntu.com/security/CVE-2021-0129
  • report
    https://ubuntu.com/security/CVE-2021-3483
  • report
    https://ubuntu.com/security/CVE-2021-3506
  • report
    https://ubuntu.com/security/CVE-2021-3564
  • report
    https://ubuntu.com/security/CVE-2021-3573
  • report
    https://ubuntu.com/security/CVE-2021-3612
  • report
    https://ubuntu.com/security/CVE-2021-3679
  • report
    https://ubuntu.com/security/CVE-2021-20292
  • report
    https://ubuntu.com/security/CVE-2021-20317
  • report
    https://ubuntu.com/security/CVE-2021-23134
  • report
    https://ubuntu.com/security/CVE-2021-28688
  • report
    https://ubuntu.com/security/CVE-2021-28972
  • report
    https://ubuntu.com/security/CVE-2021-29650
  • report
    https://ubuntu.com/security/CVE-2021-32399
  • report
    https://ubuntu.com/security/CVE-2021-33033
  • report
    https://ubuntu.com/security/CVE-2021-33034
  • report
    https://ubuntu.com/security/CVE-2021-33098
  • report
    https://ubuntu.com/security/CVE-2021-34693
  • report
    https://ubuntu.com/security/CVE-2021-38160
  • report
    https://ubuntu.com/security/CVE-2021-38198
  • report
    https://ubuntu.com/security/CVE-2021-38204
  • report
    https://ubuntu.com/security/CVE-2021-38208
  • report
    https://ubuntu.com/security/CVE-2021-39648
  • report
    https://ubuntu.com/security/CVE-2021-40490