CVE-2021-38201
kernel: slab-out-of-bounds access in xdr_set_page_base() in net/sunrpc/xdr.c
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
El archivo net/sunrpc/xdr.c en el kernel de Linux versiones anteriores a 5.13.4, permite a atacantes remotos causar una denegación de servicio (acceso fuera de los límites de xdr_set_page_base) al llevar a cabo muchas operaciones NFS 4.2 READ_PLUS
A flaw was found in the Linux kernel that 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. The highest threat from this vulnerability is to system availability.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2021-08-08 CVE Reserved
- 2021-08-08 CVE Published
- 2024-04-23 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://security.netapp.com/advisory/ntap-20210902-0010 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 | 2024-04-23 | |
| https://github.com/torvalds/linux/commit/6d1c0f3d28f98ea2736128ed3e46821496dc3a8c | 2024-04-23 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2021-38201 | 2021-09-07 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1992731 | 2021-09-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Netapp Search vendor "Netapp" | Hci Bootstrap Os Search vendor "Netapp" for product "Hci Bootstrap Os" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Hci Compute Node Search vendor "Netapp" for product "Hci Compute Node" | - | - |
Safe
|
| Netapp Search vendor "Netapp" | Element Software Search vendor "Netapp" for product "Element Software" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Hci Storage Node Search vendor "Netapp" for product "Hci Storage Node" | - | - |
Safe
|
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.11.0 < 5.12.19 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11.0 < 5.12.19" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.13.0 < 5.13.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.13.0 < 5.13.4" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Hci Management Node Search vendor "Netapp" for product "Hci Management Node" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Solidfire Search vendor "Netapp" for product "Solidfire" | - | - |
Affected
| ||||||