CVE-2021-31829

CVE Details

Release Date:

2021-05-06

Description

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.

See more information about CVE-2021-31829 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	Base Metrics:	AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Access Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	None	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9362	2021-07-16
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9363	2021-07-16
Oracle Linux version 8 (kernel)	ELSA-2021-4356	2021-11-16
Oracle Linux version 8 (kernel-uek)	ELSA-2021-9362	2021-07-16
Oracle Linux version 8 (kernel-uek-container)	ELSA-2021-9363	2021-07-16

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team