oss-security - Re: CVE-2021-3997: Uncontrolled recursion in systemd's systemd-tmpfiles

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Date: Tue, 11 Jan 2022 00:01:34 +0000
From: Sam James <sam@...too.org>
To: oss-security@...ts.openwall.com
Subject: Re: CVE-2021-3997: Uncontrolled recursion in systemd's
 systemd-tmpfiles



> On 10 Jan 2022, at 18:08, Qualys Security Advisory <qsa@...lys.com> wrote:
> 
> Hi all,
> 
> We discovered a minor denial of service (an uncontrolled recursion) in
> systemd-tmpfiles, CVE-2021-3997; the Coordinated Release Date is today
> (January 10, 2022), and a patch is now available at (many thanks to
> Zbigniew Jedrzejewski-Szmek for working on this):
> 
> https://github.com/systemd/systemd/commit/55a89ea1b4088a6d84ba0bd3cd8e648bd51f1ebf
> [...]

Thanks.

Fix commit (as you linked): https://github.com/systemd/systemd/commit/55a89ea1b4088a6d84ba0bd3cd8e648bd51f1ebf
Backport release for 250.x: 250.2 (see https://github.com/systemd/systemd-stable/compare/v250.1...v250.2)
Backport release for 249.x: pending

Best,
sam

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