Vulnerability DatabaseCVE-2020-25285
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CVE-2020-25285
Published:September 13, 2020
Updated:May 17, 2026
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.
Related Resources (12)
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://usn.ubuntu.com/4579-1/
https://security.netapp.com/advisory/ntap-20201009-0002/
https://usn.ubuntu.com/4576-1/
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.8
https://twitter.com/grsecurity/status/1303749848898904067
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-25285
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17743798d81238ab13050e8e2833699b54e15467
https://access.redhat.com/security/cve/CVE-2020-25285
https://security-tracker.debian.org/tracker/CVE-2020-25285
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CVSS v4
Base Score:
7.1
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.4
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
NULL Pointer Dereference
CWE-476
Out-of-bounds Write
CWE-787
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-362
EPSS
Base Score:
0.05