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Message-ID: <ZjkiIepSLogcd1zY@landeda>
Date: Mon, 6 May 2024 20:32:01 +0200
From: "Yann E. MORIN" <yann.morin.1998@...e.fr>
To: Ben Hutchings <ben.hutchings@...d.be>
Cc: oss-security@...ts.openwall.com, buildroot@...ldroot.org
Subject: Re: [Buildroot] Buildroot: incorrect permissons on /dev/shm

Ben, All,

On 2024-05-06 12:24 +0200, Ben Hutchings via buildroot spake thusly:
> On Thu, Apr 11, 2024 at 05:31:02PM +0200, Ben Hutchings wrote:
> > Buildroot is a Linux distribution and system builder for embedded
> > systems.  Starting in Buildroot 2011.08, its default /etc/fstab
> > included an entry for /dev/shm with incorrect permissons (sticky bit
> > not set). (CWE-276)
> > 
> > Buildroot 2017.08 removed this entry for systems using systemd, and it
> > has never been included for systems using OpenRC.  So this only
> > affects Buildroot-built systems that use sysvinit, and some older
> > systems that use systemd.
> [...]
> 
> This has been assigned CVE-2024-34455.

Thanks for th efeedback. The fix has already been committed, with commit
0b2967e158 (package/skeleton-init-sysv: Set sticky bit on /dev/shm) that
I applied on 2024-04-11.

Regards,
Yann E. MORIN.

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