High severity · published Aug 8, 2021
CVE-2021-38201
net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2…
7.5
CVSS
3.4%
EPSS
No
On KEV
Description
net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
5.11.0 before 5.12.19; 5.13.0 before 5.13.4 · source: NVD
ES
Element Software · Netapp
All versions, or not specified · source: NVD
HB
Hci Bootstrap OS · Netapp
All versions, or not specified · source: NVD
HM
Hci Management Node · Netapp
All versions, or not specified · source: NVD
SO
Solidfire · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-38201
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-38201
Mailing List
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
Patch
https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0010/
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