CVE-2019-9495
wpa - security update
3.7
LOW
CVSS 3.1
EPSS 3.4%
描述
The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
如何修補 CVE-2019-9495
要修補 CVE-2019-9495,請將受影響套件升級到下列已修補版本。
- —升級至 2.7-r2 或更新版本
- —升級至 2:2.7+git20190128+0c1e29f-4 或更新版本
- —升級至 2:2.4-1+deb9u3 或更新版本
CVE-2019-9495 正在被利用嗎?
低 — EPSS 為 3.4%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 2.7-r2
- from 0, < 2:2.7+git20190128+0c1e29f-4
- from 0, < 2:2.4-1+deb9u3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |