CVE-2019-9497

描述

The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit. This vulnerability may allow an attacker to complete EAP-PWD authentication without knowing the password. However, unless the crypto library does not implement additional checks for the EC point, the attacker will not be able to derive the session key or complete the key exchange. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. 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-2019-9497

要修補 CVE-2019-9497,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

CVE-2019-9497 正在被利用嗎?

中等 — EPSS 為 11.5%,可持續追蹤但非最高優先。

受影響套件(2)

• from 0, < 2.7-r2
• from 0, < 2:2.7+git20190128+0c1e29f-4

CVSS 分數

參考連結(2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2019-9497
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2019-9497