Release Date: | 2021-03-20 |
An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable 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-f232326f6966. This affects pointer types that do not define a ptr_limit.
See more information about CVE-2020-27170 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
Base Score: | 4.7 | Base Metrics: | AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
Access Vector: | Local network | Attack Complexity: | High |
Privileges Required: | Low | User Interaction: | None |
Scope: | Unchanged | Confidentiality Impact: | High |
Integrity Impact: | None | Availability Impact: | None |
Platform | Errata | Release Date |
Oracle Linux version 7 (kernel) | ELSA-2021-2314 | 2021-06-10 |
Oracle Linux version 7 (kernel-uek) | ELSA-2021-9140 | 2021-03-31 |
Oracle Linux version 7 (kernel-uek) | ELSA-2021-9222 | 2021-05-10 |
Oracle Linux version 7 (kernel-uek-container) | ELSA-2021-9141 | 2021-03-31 |
Oracle Linux version 7 (kernel-uek-container) | ELSA-2021-9223 | 2021-05-10 |
Oracle Linux version 8 (kernel-uek) | ELSA-2021-9140 | 2021-03-31 |
Oracle Linux version 8 (kernel-uek-container) | ELSA-2021-9141 | 2021-03-31 |
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