CVE-2021-42762

描述

BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit before 2.34.1 allows a limited sandbox bypass that allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by the sandbox, by abusing VFS syscalls that manipulate its filesystem namespace. The impact is limited to host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process remains otherwise confined. NOTE: this is similar to CVE-2021-41133.

如何修補 CVE-2021-42762

要修補 CVE-2021-42762,請將受影響套件升級到下列已修補版本。

• —升級至 2.34.1-1~deb11u1 或更新版本
• —升級至 2.34.1-1~deb11u1 或更新版本

CVE-2021-42762 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 2.34.1-1~deb11u1
• from 0, < 2.34.1-1~deb11u1

CVSS 分數

參考連結(1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2021-42762