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CVE-2020-26558 Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authen...

MediumCVSS 4.2 EPSS 0.88%
Published
Updated
Exploit status
No public exploit known

Description

Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.

Affected products

ProductAffected versionsFixed in
debian/bluez(Debian:12) < 5.55-3.1 5.55-3.1
debian/bluez(Debian:13) < 5.55-3.1 5.55-3.1
debian/bluez(Debian:14) < 5.55-3.1 5.55-3.1
debian/linux(Debian:12) < 5.10.40-1 5.10.40-1
debian/linux(Debian:13) < 5.10.40-1 5.10.40-1
debian/linux(Debian:14) < 5.10.40-1 5.10.40-1
bluetooth core specification >= 2.1, <= 5.2 No fix listed
fedoraproject fedora = 34 No fix listed
debian linux = 9.0 No fix listed
Linux kernel < 5.13 5.13
intel ax210 firmware All versions No fix listed
intel ax201 firmware All versions No fix listed
intel ax200 firmware All versions No fix listed
intel ac 9560 firmware All versions No fix listed
intel ac 9462 firmware All versions No fix listed
intel ac 9461 firmware All versions No fix listed
intel ac 9260 firmware All versions No fix listed
intel ac 8265 firmware All versions No fix listed
intel ac 8260 firmware All versions No fix listed
intel ac 3168 firmware All versions No fix listed
intel ac 7265 firmware All versions No fix listed
intel ac 3165 firmware All versions No fix listed
intel ax1675 firmware All versions No fix listed
intel ax1650 firmware All versions No fix listed
intel ac 1550 firmware All versions No fix listed

References