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Signed-off-by: Sam James <sam@g.o> |
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Signed-off-by: Georgy Yakovlev <gyakovlev@g.o> |
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--- |
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.../2021-07-07-systemd-tmpfiles.en.txt | 64 +++++++++++++++++++ |
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1 file changed, 64 insertions(+) |
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create mode 100644 2021-07-07-systemd-tmpfiles/2021-07-07-systemd-tmpfiles.en.txt |
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|
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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 |
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new file mode 100644 |
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index 0000000..e946c89 |
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--- /dev/null |
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+++ b/2021-07-07-systemd-tmpfiles/2021-07-07-systemd-tmpfiles.en.txt |
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@@ -0,0 +1,64 @@ |
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+Title: systemd-tmpfiles replaces opentmpfiles due to security issues |
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+Author: Georgy Yakovlev <gyakovlev@g.o> |
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+Author: Sam James <sam@g.o> |
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+Posted: 2021-07-07 |
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+Revision: 1 |
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+News-Item-Format: 2.0 |
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+Display-If-Installed: sys-apps/opentmpfiles |
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+Display-If-Installed: sys-apps/systemd-tmpfiles |
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+ |
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+A tmpfiles [0] implementation provides a generic mechanism to define |
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+the creation of regular files, directories, pipes, and device nodes, |
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+adjustments to their access mode, ownership, attributes, quota |
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+assignments, and contents, and finally their time-based removal. |
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+It is commonly used for volatile and temporary files and directories |
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+such as those located under /run/, /tmp/, /var/tmp/, the API file |
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+systems such as /sys/ or /proc/, as well as some other directories |
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+below /var/. [1] |
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+ |
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+On 2021-07-06, the sys-apps/opentmpfiles package was masked due to a |
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+root privilege escalation vulnerability (CVE-2017-18925 [2], |
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+bug #751415 [3], issue 4 [4] upstream). |
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+ |
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+The use of opentmpfiles is discouraged by its maintainer due to the |
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+unpatched vulnerability and other long-standing bugs [5]. |
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+ |
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+Users will start seeing their package manager trying to replace |
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+sys-apps/opentmpfiles with sys-apps/systemd-tmpfiles because it is |
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+another provider of virtual/tmpfiles. |
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+ |
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+Despite the name, 'systemd-tmpfiles' does not depend on systemd, does |
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+not use dbus, and is just a drop-in replacement for opentmpfiles. It is |
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+a small binary built from systemd source code, but works separately, |
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+similarly to eudev or elogind. It is known to work on both glibc and |
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+musl systems. |
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+ |
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+Note that systemd-tmpfiles is specifically for non-systemd systems. It |
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+is intended to be used on an OpenRC system. |
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+ |
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+If you wish to selectively test systemd-tmpfiles, follow those steps: |
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+ |
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+ 1. # emerge --oneshot sys-apps/systemd-tmpfiles |
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+ 2. # reboot |
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+ |
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+No other steps required. |
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+ |
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+If, after reviewing the linked bug reference for opentmpfiles, you feel |
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+your system is not vulnerable/applicable to the attack described, you |
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+can unmask [6] opentmpfiles at your own risk: |
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+ |
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+ 1. In /etc/portage/package.unmask, add a line: |
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+ -sys-apps/opentmpfiles- |
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+ 2. # emerge --oneshot sys-apps/opentmpfiles |
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+ |
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+Note that opentmpfiles is likely to be removed from gentoo repository |
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+in the future. |
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+ |
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+[0] https://www.freedesktop.org/software/systemd/man/systemd-tmpfiles.html |
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+[1] https://www.freedesktop.org/software/systemd/man/tmpfiles.d.html |
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+[2] https://nvd.nist.gov/vuln/detail/CVE-2017-18925 |
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+[3] https://bugs.gentoo.org/751415 |
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+[4] https://github.com/OpenRC/opentmpfiles/issues/4 |
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+[5] https://bugs.gentoo.org/741216 |
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+[6] https://wiki.gentoo.org/wiki/Knowledge_Base:Unmasking_a_package |
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+ |
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-- |
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2.32.0 |
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