CVEvulnerability
CVE-2020-27825
5.7 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-12-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.4 MEDIUM — AV:L/AC:M/Au:N/C:P/I:N/A:C
- Weaknesses
- CWE-362
Description
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.
Affected configurations
• linux linux kernel 5.10
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• redhat enterprise mrg 2.0
• debian debian linux 9.0
• debian debian linux 10.0
• netapp cloud backup
• netapp solidfire baseboard management controller firmware
• netapp h410c firmware
Related
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1905155 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210521-0008/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1905155 Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210521-0008/ Third Party Advisory
- https://www.debian.org/security/2021/dsa-4843 Third Party Advisory