CVE-2020-25285

MEDIUM

Linux Kernel < 5.8.8 - Race Condition in hugetlb sysctl Handlers

Title source: llm
STIX 2.1

Description

A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.

References (9)

Core 9
Core References
Third Party Advisory x_refsource_misc
https://twitter.com/grsecurity/status/1303749848898904067
Release Notes, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.8
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20201009-0002/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4576-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4579-1/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html

Scores

CVSS v3 6.4
EPSS 0.0005
EPSS Percentile 14.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-362 CWE-476 CWE-787
Status published
Products (6)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 20.04
debian/debian_linux 9.0
linux/linux_kernel < 5.8.8
Published Sep 13, 2020
Tracked Since Feb 18, 2026