CVE-2022-39173

描述

In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list of duplicate cipher suites to trigger the buffer overflow. In total, two Client Hellos have to be sent: one in the resumed session, and a second one as a response to a Hello Retry Request message.

如何修補 CVE-2022-39173

要修補 CVE-2022-39173,請將受影響套件升級到下列已修補版本。

• —升級至 4.6.0+p1-0+deb11u2 或更新版本

CVE-2022-39173 正在被利用嗎?

低 — EPSS 為 4.3%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• from 0, < 4.6.0+p1-0+deb11u2

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2022-39173