CVE-2021-31615: Race Condition
Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0 through 5.2 may permit an adjacent device to inject a crafted packet during the receive window of the listening device before the transmitting device initiates its packet transmission to achieve full MITM status without terminating the link. When applied against devices establishing or using encrypted links, crafted packets may be used to terminate an existing link, but will not compromise the confidentiality or integrity of the link.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-31615?
CVE-2021-31615 is a vulnerability in Bluetooth Core Specifications 4.0 through 5.2 that allows an adjacent device to inject a crafted packet during the receive window to achieve full MITM status.
What is the severity of CVE-2021-31615?
CVE-2021-31615 has a severity level of 5.3, which is classified as medium.
Which software versions are affected by CVE-2021-31615?
Bluetooth Core Specifications versions 4.0 through 5.2 are affected by CVE-2021-31615.
How can an adjacent device exploit CVE-2021-31615?
An adjacent device can exploit CVE-2021-31615 by injecting a crafted packet during the receive window of the listening device.
Are there any references to learn more about CVE-2021-31615?
For more information on CVE-2021-31615, you can visit the Bluetooth official website or the Bluetooth Security page on the Bluetooth website.