CVE-2021-47620

low-risk

Published 2024-06-20

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.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Linux Kernel

Affected Vendors

Linux

References (18)

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