Home/CVE/A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local
CVE

CVE-2020-25285

A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local

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.

MEDIUM · CVSS 6.4 EPSS 0.00046
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-476NULL Pointer Dereference
CWE-787Out-of-bounds Write
▤

Affected Products & Versions

3
linux kernel< 5.8.8
debian linuxall versions
canonical ubuntu linuxall versions
▣

Scoring & Timeline

6.4
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Sep 2020 · 06:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

24
rhsaRHSA-2021:1578Moderate
rhsaRHSA-2021:1739Moderate
usnUSN-4912-1
suse-csafSUSE-SU-2021:14630-1
suse-csafSUSE-SU-2021:0452-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.8Release NotesVendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17743798d81238ab13050e8e2833699b54e15467PatchVendor Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20201009-0002/Third Party Advisory
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