Select your cookie preferences

We use cookies and similar tools to enhance your experience, provide our services, deliver relevant advertising, and make improvements. Approved third parties also use these tools to help us deliver advertising and provide certain site features.

CVE-2021-41073

Public on 2021-09-19
Modified on 2022-01-10
Description

A flaw was found in loop_rw_iter in fs/io_uring.c in the Linux kernel. This problem gives the ability to a local user with a normal user privilege to free a user-defined kernel space buffer.

Severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-01-20 23:51 ALAS2KERNEL-5.10-2022-006
Amazon Linux 2 - Livepatch Extra kernel-livepatch-5.10.50-44.131 2021-11-03 22:48 ALAS2LIVEPATCH-2021-065
Amazon Linux 2 - Livepatch Extra kernel-livepatch-5.10.50-44.132 2021-11-03 22:49 ALAS2LIVEPATCH-2021-066
Amazon Linux 2 - Livepatch Extra kernel-livepatch-5.10.59-52.142 2021-11-03 22:49 ALAS2LIVEPATCH-2021-067
Amazon Linux 2 - Livepatch Extra kernel-livepatch-5.10.62-55.141 2021-11-03 22:50 ALAS2LIVEPATCH-2021-068

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2021-41073 Mitre: CVE-2021-41073 FAQs regarding Amazon Linux ALAS/CVE Severity