A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-2557-1 linux-4.19 security update
Debian DLA Debian DLA DLA-2586-1 linux security update
Debian DSA Debian DSA DSA-4843-1 linux security update
EUVD EUVD EUVD-2020-20325 A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T16:25:43.895Z

Reserved: 2020-10-27T00:00:00

Link: CVE-2020-27825

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-12-11T19:15:12.607

Modified: 2024-11-21T05:21:53.023

Link: CVE-2020-27825

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-10-06T01:00:00Z

Links: CVE-2020-27825 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses