CWE
190 416 362
Advisory Published

USN-5209-1: Linux kernel vulnerabilities

First published: Thu Jan 06 2022(Updated: )

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. (CVE-2021-4002) It was discovered that a race condition existed in the timer implementation in the Linux kernel. A privileged attacker could use this cause a denial of service. (CVE-2021-20317) It was discovered that a race condition existed in the overlay file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-20321) It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760) It was discovered that an integer overflow could be triggered in the eBPF implementation in the Linux kernel when preallocating objects for stack maps. A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-41864) It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/linux-image-4.15.0-1033-dell300x<4.15.0-1033.38
4.15.0-1033.38
=18.04
All of
ubuntu/linux-image-4.15.0-1085-oracle<4.15.0-1085.93
4.15.0-1085.93
=18.04
All of
ubuntu/linux-image-4.15.0-1101-raspi2<4.15.0-1101.108
4.15.0-1101.108
=18.04
All of
ubuntu/linux-image-4.15.0-1105-kvm<4.15.0-1105.107
4.15.0-1105.107
=18.04
All of
ubuntu/linux-image-4.15.0-1114-gcp<4.15.0-1114.128
4.15.0-1114.128
=18.04
All of
ubuntu/linux-image-4.15.0-1118-aws<4.15.0-1118.125
4.15.0-1118.125
=18.04
All of
ubuntu/linux-image-4.15.0-1118-snapdragon<4.15.0-1118.127
4.15.0-1118.127
=18.04
All of
ubuntu/linux-image-4.15.0-1129-azure<4.15.0-1129.142
4.15.0-1129.142
=18.04
All of
ubuntu/linux-image-4.15.0-166-generic<4.15.0-166.174
4.15.0-166.174
=18.04
All of
ubuntu/linux-image-4.15.0-166-generic-lpae<4.15.0-166.174
4.15.0-166.174
=18.04
All of
ubuntu/linux-image-4.15.0-166-lowlatency<4.15.0-166.174
4.15.0-166.174
=18.04
All of
ubuntu/linux-image-aws-lts-18.04<4.15.0.1118.121
4.15.0.1118.121
=18.04
All of
ubuntu/linux-image-azure-lts-18.04<4.15.0.1129.102
4.15.0.1129.102
=18.04
All of
ubuntu/linux-image-dell300x<4.15.0.1033.35
4.15.0.1033.35
=18.04
All of
ubuntu/linux-image-gcp-lts-18.04<4.15.0.1114.133
4.15.0.1114.133
=18.04
All of
ubuntu/linux-image-generic<4.15.0.166.155
4.15.0.166.155
=18.04
All of
ubuntu/linux-image-generic-lpae<4.15.0.166.155
4.15.0.166.155
=18.04
All of
ubuntu/linux-image-kvm<4.15.0.1105.101
4.15.0.1105.101
=18.04
All of
ubuntu/linux-image-lowlatency<4.15.0.166.155
4.15.0.166.155
=18.04
All of
ubuntu/linux-image-oracle-lts-18.04<4.15.0.1085.95
4.15.0.1085.95
=18.04
All of
ubuntu/linux-image-raspi2<4.15.0.1101.99
4.15.0.1101.99
=18.04
All of
ubuntu/linux-image-snapdragon<4.15.0.1118.121
4.15.0.1118.121
=18.04
All of
ubuntu/linux-image-virtual<4.15.0.166.155
4.15.0.166.155
=18.04
All of
ubuntu/linux-image-4.15.0-1085-oracle<4.15.0-1085.93~16.04.1
4.15.0-1085.93~16.04.1
=16.04
All of
ubuntu/linux-image-4.15.0-1114-gcp<4.15.0-1114.128~16.04.1
4.15.0-1114.128~16.04.1
=16.04
All of
ubuntu/linux-image-4.15.0-1118-aws<4.15.0-1118.125~16.04.1
4.15.0-1118.125~16.04.1
=16.04
All of
ubuntu/linux-image-4.15.0-1129-azure<4.15.0-1129.142~16.04.1
4.15.0-1129.142~16.04.1
=16.04
All of
ubuntu/linux-image-4.15.0-166-generic<4.15.0-166.174~16.04.1
4.15.0-166.174~16.04.1
=16.04
All of
ubuntu/linux-image-4.15.0-166-lowlatency<4.15.0-166.174~16.04.1
4.15.0-166.174~16.04.1
=16.04
All of
ubuntu/linux-image-aws-hwe<4.15.0.1118.108
4.15.0.1118.108
=16.04
All of
ubuntu/linux-image-azure<4.15.0.1129.120
4.15.0.1129.120
=16.04
All of
ubuntu/linux-image-gcp<4.15.0.1114.115
4.15.0.1114.115
=16.04
All of
ubuntu/linux-image-generic-hwe-16.04<4.15.0.166.158
4.15.0.166.158
=16.04
All of
ubuntu/linux-image-gke<4.15.0.1114.115
4.15.0.1114.115
=16.04
All of
ubuntu/linux-image-lowlatency-hwe-16.04<4.15.0.166.158
4.15.0.166.158
=16.04
All of
ubuntu/linux-image-oem<4.15.0.166.158
4.15.0.166.158
=16.04
All of
ubuntu/linux-image-oracle<4.15.0.1085.73
4.15.0.1085.73
=16.04
All of
ubuntu/linux-image-virtual-hwe-16.04<4.15.0.166.158
4.15.0.166.158
=16.04
All of
ubuntu/linux-image-4.15.0-1129-azure<4.15.0-1129.142~14.04.1
4.15.0-1129.142~14.04.1
=14.04
All of
ubuntu/linux-image-azure<4.15.0.1129.102
4.15.0.1129.102
=14.04

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203