CVE-2020-26558
bluez - security update
4.2
MEDIUM
CVSS 3.1
EPSS 0.87%
描述
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.
如何修補 CVE-2020-26558
要修補 CVE-2020-26558,請將受影響套件升級到下列已修補版本。
- —升級至 5.55-3.1 或更新版本
- —升級至 5.43-2+deb9u4 或更新版本
- —升級至 5.50-1.2~deb10u2 或更新版本
- —升級至 5.10.40-1 或更新版本
CVE-2020-26558 正在被利用嗎?
低 — EPSS 為 0.9%,目前沒有觀察到大規模利用活動。
受影響套件(4)
- from 0, < 5.55-3.1
- from 0, < 5.43-2+deb9u4
- from 0, < 5.50-1.2~deb10u2
- from 0, < 5.10.40-1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.2 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |