CVE-2021-4090

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-4090
An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw, a local attacker with user privilege may gain access to out-of-bounds memory, leading to a system integrity and confidentiality threat.

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

6.6 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:N

Exploitability : 3.9 / Impact : 9.2

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact NONE

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2025101 Issue Tracking Patch Third Party Advisory
https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit%40klimt.1015granger.net/
https://security.netapp.com/advisory/ntap-20220318-0010/ Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*

Configuration 5 (hide)

AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*

Configuration 6 (hide)

AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*

Configuration 7 (hide)

AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*

Configuration 8 (hide)

AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*

Configuration 9 (hide)

AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
History

13 Dec 2022, 20:40

Type Values Removed Values Added
CPE cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:*		 cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*

11 May 2022, 13:24

Type Values Removed Values Added
References (CONFIRM) https://security.netapp.com/advisory/ntap-20220318-0010/ - (CONFIRM) https://security.netapp.com/advisory/ntap-20220318-0010/ - Third Party Advisory
CPE cpe:2.3:o:netapp:baseboard_management_controller_h500s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:*
cpe:2.3:o:netapp:baseboard_management_controller_h700s_firmware:-:*:*:*:*:*:*:*

18 Mar 2022, 20:15

Type Values Removed Values Added
References
  • (CONFIRM) https://security.netapp.com/advisory/ntap-20220318-0010/ -

01 Mar 2022, 00:58

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-787
References (MISC) https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit@klimt.1015granger.net/ - (MISC) https://lore.kernel.org/linux-nfs/163692036074.16710.5678362976688977923.stgit@klimt.1015granger.net/ - Patch, Vendor Advisory
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2025101 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=2025101 - Issue Tracking, Patch, Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 6.6
v3 : 7.1

18 Feb 2022, 18:33

Type Values Removed Values Added
New CVE
Information

Published : 2022-02-18 18:15

Updated : 2024-02-04 22:29

NVD link : CVE-2021-4090

Mitre link : CVE-2021-4090

CVE.ORG link : CVE-2021-4090

JSON object : View

Products Affected

netapp

  • h700s_firmware
  • h700s
  • h500e_firmware
  • h500e
  • h700e
  • h300s
  • h410s_firmware
  • h410c_firmware
  • h500s
  • h410s
  • h500s_firmware
  • h300s_firmware
  • h300e
  • h410c
  • h300e_firmware
  • h700e_firmware

linux

  • linux_kernel
CWE
CWE-787

Out-of-bounds Write