CVE-2021-47620

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47620
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: refactor malicious adv data check Check for out-of-bound read was being performed at the end of while num_reports loop, and would fill journal with false positives. Added check to beginning of loop processing so that it doesn't get checked after ptr has been advanced.

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 HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 Patch
https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e Patch
https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e Patch
https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c Patch
https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 Patch
https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba Patch
https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb Patch
https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a Patch
https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c Patch
https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 Patch
https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e Patch
https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e Patch
https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c Patch
https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 Patch
https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba Patch
https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb Patch
https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a Patch
https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

21 Nov 2024, 06:36

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 - Patch () https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 - Patch
References () https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e - Patch () https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e - Patch
References () https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e - Patch () https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e - Patch
References () https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c - Patch () https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c - Patch
References () https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 - Patch () https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 - Patch
References () https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba - Patch () https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba - Patch
References () https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb - Patch () https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb - Patch
References () https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a - Patch () https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a - Patch
References () https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c - Patch () https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c - Patch

18 Sep 2024, 17:07

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 - () https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 - Patch
References () https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e - () https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e - Patch
References () https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e - () https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e - Patch
References () https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c - () https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c - Patch
References () https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 - () https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 - Patch
References () https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba - () https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba - Patch
References () https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb - () https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb - Patch
References () https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a - () https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a - Patch
References () https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c - () https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c - Patch
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-125
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5

20 Jun 2024, 12:43

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se resolvió la siguiente vulnerabilidad: Bluetooth: refactorización de verificación de datos publicitarios maliciosos. Se estaba realizando una verificación de lectura fuera de los límites al final del bucle while num_reports y llenaría el diario con falsos positivos. Se agregó una verificación al comienzo del procesamiento del bucle para que no se verifique después de que se haya avanzado ptr.

20 Jun 2024, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-06-20 11:15

Updated : 2024-11-21 06:36

NVD link : CVE-2021-47620

Mitre link : CVE-2021-47620

CVE.ORG link : CVE-2021-47620

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read


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