CVE-2021-20197

There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When...

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

There is an open race window when writing output in the following utilities in GNU binutils version 2.35 and earlier:ar, objcopy, strip, ranlib. When these utilities are run as a privileged user (presumably as part of a script updating binaries across different users), an unprivileged user can trick these utilities into getting ownership of arbitrary files through a symlink.

出典: OSV.dev (Open Source Vulnerabilities) NVD OSV

ディストリビューション別の修正状況

各ディストリビューションが公開している、この CVE の修正パッケージ

Debian DEBIAN-CVE-2021-20197 binutils 修正版: 2.37-3

参照URL

advisory security.gentoo.org
advisory security.netapp.com
patch bugzilla.redhat.com
patch sourceware.org