Re: [gentoo-dev] [PATCH] 2021-07-07-systemd-tmpfiles: add news item

[Tomas Mozes]

On Fri, Jul 9, 2021 at 4:38 AM Georgy Yakovlev <gyakovlev@g.o> wrote:

> Signed-off-by: Sam James <sam@g.o>
> Signed-off-by: Georgy Yakovlev <gyakovlev@g.o>
> ---
>  .../2021-07-07-systemd-tmpfiles.en.txt        | 48 +++++++++++++++++++
>  1 file changed, 48 insertions(+)
>  create mode 100644
> 2021-07-07-systemd-tmpfiles/2021-07-07-systemd-tmpfiles.en.txt
>
> diff --git
> a/2021-07-07-systemd-tmpfiles/2021-07-07-systemd-tmpfiles.en.txt
> b/2021-07-07-systemd-tmpfiles/2021-07-07-systemd-tmpfiles.en.txt
> new file mode 100644
> index 0000000..0960663
> --- /dev/null
> +++ b/2021-07-07-systemd-tmpfiles/2021-07-07-systemd-tmpfiles.en.txt
> @@ -0,0 +1,48 @@
> +Title: systemd-tmpfiles replaces opentmpfiles due to security issues
> +Author: Georgy Yakovlev <gyakovlev@g.o>
> +Author: Sam James <sam@g.o>
> +Posted: 2021-07-07
> +Revision: 1
> +News-Item-Format: 2.0
> +Display-If-Installed: virtual/tmpfiles
> +
> +On 2021-07-06, the sys-apps/opentmpfiles package was masked due to a
> +root privilege escalation vulnerability (CVE-2017-18925 [0],
> +bug #751415 [1], issue 4 [2] upstream).
> +
> +The use of opentmpfiles is discouraged by its maintainer due to the
> +unpatched vulnerability and other long-standing bugs [3].
> +
> +Users will start seeing their package manager trying to replace
> +sys-apps/opentmpfiles with sys-apps/systemd-tmpfiles because it is
> +another provider of virtual/tmpfiles.
> +
> +Despite the name, 'systemd-tmpfiles' does not depend on systemd, does
> +not use dbus, and is just a drop-in replacement for opentmpfiles. It is
> +a small binary built from systemd source code, but works separately,
> +similarly to eudev or elogind. It is known to work on both glibc and
> +musl systems.
> +
> +Note that systemd-tmpfiles is specifically for non-systemd systems. It
> +is intended to be used on an OpenRC system.
> +
> +If you wish to selectively test systemd-tmpfiles, follow those steps:
> +
> + 1. # emerge --oneshot sys-apps/systemd-tmpfiles
> + 2. # reboot
> +
> +No other steps required.
> +
> +If, after reviewing the linked bug reference for opentmpfiles, you feel
> +your system is not vulnerable/applicable to the attack described, you
> +can unmask[4] opentmpfiles at your own risk:
> +
> +1. In /etc/portage/package.unmask, add:
> +-sys-apps/opentmpfiles
> +2. # emerge --oneshot sys-apps/opentmpfiles
> +
> +[0] https://nvd.nist.gov/vuln/detail/CVE-2017-18925
> +[1] https://bugs.gentoo.org/751415
> +[2] https://github.com/OpenRC/opentmpfiles/issues/4
> +[3] https://bugs.gentoo.org/741216
> +[4] https://wiki.gentoo.org/wiki/Knowledge_Base:Unmasking_a_package
> --
> 2.32.0
>
>
>
Plus maybe removing these dead symlinks:
/etc/runlevels/boot/opentmpfiles-setup
/etc/runlevels/sysinit/opentmpfiles-dev