CVE-2021-47620

MEDIUM
Published Jun 20, 2024 Modified Nov 21, 2024 CWE-125

Description

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.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c https://git.kernel.org/stable/c/305e92f525450f3e1b5f5c9dc7eadb152d66a082 https://git.kernel.org/stable/c/5a539c08d743d9910631448da78af5e961664c0e https://git.kernel.org/stable/c/5c968affa804ba98c3c603f37ffea6fba618025e https://git.kernel.org/stable/c/7889b38a7f21ed19314f83194622b195d328465c https://git.kernel.org/stable/c/835d3706852537bf92eb23eb8635b8dee0c0aa67 https://git.kernel.org/stable/c/83d5196b65d1b29e27d7dd16a3b9b439fb1d2dba https://git.kernel.org/stable/c/8819f93cd4a443dfe547aa622b21f723757df3fb https://git.kernel.org/stable/c/899663be5e75dc0174dc8bda0b5e6826edf0b29a https://git.kernel.org/stable/c/bcea886771c3f22a590c8c8b9139a107bd7f1e1c

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2021-47620? +
CVE-2021-47620 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2021-47620? +
CVE-2021-47620 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2021-47620? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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