Rapid7 Vulnerability & Exploit Database

Ubuntu: (Multiple Advisories) (CVE-2021-3753): Linux kernel vulnerabilities

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Ubuntu: (Multiple Advisories) (CVE-2021-3753): Linux kernel vulnerabilities

Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
09/16/2021
Created
10/28/2021
Added
10/20/2021
Modified
07/13/2023

Description

A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality.

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1030-dell300x
  • ubuntu-upgrade-linux-image-4-15-0-1083-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1098-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1102-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1111-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1115-aws
  • ubuntu-upgrade-linux-image-4-15-0-1115-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1126-azure
  • ubuntu-upgrade-linux-image-4-15-0-162-generic
  • ubuntu-upgrade-linux-image-4-15-0-162-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-162-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1120-aws
  • ubuntu-upgrade-linux-image-4-4-0-1121-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1158-aws
  • ubuntu-upgrade-linux-image-4-4-0-242-generic
  • ubuntu-upgrade-linux-image-4-4-0-242-lowlatency
  • ubuntu-upgrade-linux-image-5-10-0-1050-oem
  • ubuntu-upgrade-linux-image-5-11-0-1018-kvm
  • ubuntu-upgrade-linux-image-5-11-0-1020-aws
  • ubuntu-upgrade-linux-image-5-11-0-1020-azure
  • ubuntu-upgrade-linux-image-5-11-0-1020-oracle
  • ubuntu-upgrade-linux-image-5-11-0-1021-gcp
  • ubuntu-upgrade-linux-image-5-11-0-1021-raspi
  • ubuntu-upgrade-linux-image-5-11-0-1021-raspi-nolpae
  • ubuntu-upgrade-linux-image-5-11-0-38-generic
  • ubuntu-upgrade-linux-image-5-11-0-38-generic-64k
  • ubuntu-upgrade-linux-image-5-11-0-38-generic-lpae
  • ubuntu-upgrade-linux-image-5-11-0-38-lowlatency
  • ubuntu-upgrade-linux-image-5-13-0-1017-oem
  • ubuntu-upgrade-linux-image-5-4-0-1007-ibm
  • ubuntu-upgrade-linux-image-5-4-0-1021-bluefield
  • ubuntu-upgrade-linux-image-5-4-0-1026-gkeop
  • ubuntu-upgrade-linux-image-5-4-0-1046-raspi
  • ubuntu-upgrade-linux-image-5-4-0-1049-kvm
  • ubuntu-upgrade-linux-image-5-4-0-1055-gke
  • ubuntu-upgrade-linux-image-5-4-0-1057-gcp
  • ubuntu-upgrade-linux-image-5-4-0-1057-oracle
  • ubuntu-upgrade-linux-image-5-4-0-1059-aws
  • ubuntu-upgrade-linux-image-5-4-0-1063-azure
  • ubuntu-upgrade-linux-image-5-4-0-90-generic
  • ubuntu-upgrade-linux-image-5-4-0-90-generic-lpae
  • ubuntu-upgrade-linux-image-5-4-0-90-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-aws-lts-20-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-edge
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-azure-lts-20-04
  • ubuntu-upgrade-linux-image-bluefield
  • ubuntu-upgrade-linux-image-dell300x
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • ubuntu-upgrade-linux-image-gcp-lts-20-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-64k
  • ubuntu-upgrade-linux-image-generic-64k-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-5-4
  • ubuntu-upgrade-linux-image-gkeop
  • ubuntu-upgrade-linux-image-gkeop-5-4
  • ubuntu-upgrade-linux-image-ibm
  • ubuntu-upgrade-linux-image-ibm-lts-20-04
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-20-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oem-20-04
  • ubuntu-upgrade-linux-image-oem-20-04b
  • ubuntu-upgrade-linux-image-oem-20-04c
  • ubuntu-upgrade-linux-image-oem-osp1
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-oracle-lts-20-04
  • ubuntu-upgrade-linux-image-raspi
  • ubuntu-upgrade-linux-image-raspi-hwe-18-04
  • ubuntu-upgrade-linux-image-raspi-nolpae
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-hwe-20-04
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

View more

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;