CVE-2020-27171

CVE Details

Release Date:2021-03-20

Description


An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c has an off-by-one error (with a resultant integer underflow) affecting out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-10d2bb2e6b1d.

See more information about CVE-2020-27171 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: 6 Base Metrics: AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
Access Vector: Local network Attack Complexity: Low
Privileges Required: High User Interaction: None
Scope: Unchanged Confidentiality Impact: High
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 7 (kernel-uek)ELSA-2021-91402021-03-31
Oracle Linux version 7 (kernel-uek)ELSA-2021-92222021-05-10
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-91412021-03-31
Oracle Linux version 7 (kernel-uek-container)ELSA-2021-92232021-05-10
Oracle Linux version 8 (kernel-uek)ELSA-2021-91402021-03-31
Oracle Linux version 8 (kernel-uek-container)ELSA-2021-91412021-03-31



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

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