Description
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.
Published: 2021-03-20
Score: 4.7 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DLA Debian DLA DLA-2610-1 linux-4.19 security update
EUVD EUVD EUVD-2020-19694 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.
Ubuntu USN Ubuntu USN USN-4887-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4890-1 Linux kernel vulnerabilities
History

No history.

Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Fedoraproject Fedora
Linux Linux Kernel
Redhat Enterprise Linux Rhel Extras Rt
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T16:11:35.904Z

Reserved: 2020-10-16T00:00:00.000Z

Link: CVE-2020-27170

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-03-20T22:15:11.940

Modified: 2024-11-21T05:20:48.580

Link: CVE-2020-27170

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-03-19T00:00:00Z

Links: CVE-2020-27170 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses