CVE-2021-28964
low-risk
Published 2021-03-22
A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.
Do I need to act?
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0.09% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10
Medium
LOCAL
/ HIGH complexity
Affected Products (9)
Affected Vendors
References (14)
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210430-0003/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210430-0003/
27
/ 100
low-risk
Severity
12/34 · Low
Exploitability
0/34 · Minimal
Exposure
15/34 · Moderate