CVE-2022-43945
The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published:Oct 3, 2022
Last Modified:May 12, 2026
EPS:Nov 4, 2022
EPSS Score:0.00303
CVSS Score:7.5
Affected Products
Vendor
Product
Action
Vendor
Linux
Product
Linux Kernel
Linux
Linux Kernel
Vendor
Netapp
Product
Active Iq Unified Manager
Netapp
Active Iq Unified Manager
Vendor
Netapp
Product
H300s
Netapp
H300s
Vendor
Netapp
Product
H300s Firmware
Netapp
H300s Firmware
Vendor
Netapp
Product
H410c
Netapp
H410c
Vendor
Netapp
Product
H410c Firmware
Netapp
H410c Firmware
Vendor
Netapp
Product
H410s
Netapp
H410s
Vendor
Netapp
Product
H410s Firmware
Netapp
H410s Firmware
Vendor
Netapp
Product
H500s
Netapp
H500s
Vendor
Netapp
Product
H500s Firmware
Netapp
H500s Firmware
Vendor
Netapp
Product
H700s
Netapp
H700s
Vendor
Netapp
Product
H700s Firmware
Netapp
H700s Firmware
Vendor
Redhat
Product
Enterprise Linux
Redhat
Enterprise Linux
Vendor
Redhat
Product
Rhel Eus
Redhat
Rhel Eus
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
