Home/CVE/btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trig
CVE

CVE-2021-38203

btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trig

btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.

MEDIUM · CVSS 5.5 EPSS 0.00052
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-667Improper Locking
▤

Affected Products & Versions

5
linux kernel< 5.13.4
netapp hci bootstrap osall versions
netapp hci management nodeall versions
netapp solidfireall versions
netapp element softwareall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · 1cb3db1cf383a3c7dbda1aa0ce748b0958759947github.com
▣

Scoring & Timeline

5.5
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 NVD08 Aug 2021 · 08:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

2
usnUSN-5096-1
msrcCVE-2021-38203
🔗

References & Sources

2
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-5.13.4Mailing ListPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20210902-0010/Third Party Advisory
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