CVE-2025-21844

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-21844
In the Linux kernel, the following vulnerability has been resolved: smb: client: Add check for next_buffer in receive_encrypted_standard() Add check for the return value of cifs_buf_get() and cifs_small_buf_get() in receive_encrypted_standard() to prevent null pointer dereference.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b Patch
https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96 Patch
https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7 Patch
https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391 Patch
https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd Patch
https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30 Patch
https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10.211:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15.150:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
History

13 Mar 2025, 16:21

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.10.211:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15.150:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux
Linux linux Kernel
CWE CWE-476
References () https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b - () https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b - Patch
References () https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96 - () https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96 - Patch
References () https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7 - () https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7 - Patch
References () https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391 - () https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391 - Patch
References () https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd - () https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd - Patch
References () https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30 - () https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30 - Patch
References () https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf - () https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf - Patch

13 Mar 2025, 13:15

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: Agregar verificación para next_buffer en receive_encrypted_standard() Agregar verificación para el valor de retorno de cifs_buf_get() y cifs_small_buf_get() en receive_encrypted_standard() para evitar la desreferencia del puntero nulo.
References
  • () https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30 -
  • () https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf -

12 Mar 2025, 10:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-03-12 10:15

Updated : 2025-10-01 20:18

NVD link : CVE-2025-21844

Mitre link : CVE-2025-21844

CVE.ORG link : CVE-2025-21844

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference