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| -rw-r--r-- | etc/news.scm | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/etc/news.scm b/etc/news.scm index 6d7a4a9d4f..9b23c7ca0f 100644 --- a/etc/news.scm +++ b/etc/news.scm @@ -13,6 +13,7 @@ ;; Copyright © 2021 Leo Famulari <leo@famulari.name> ;; Copyright © 2021 Zhu Zihao <all_but_last@163.com> ;; Copyright © 2021 Chris Marusich <cmmarusich@gmail.com> +;; Copyright © 2021 Maxime Devos <maximedevos@telenet.be> ;; ;; Copying and distribution of this file, with or without modification, are ;; permitted in any medium without royalty provided the copyright notice and @@ -21,6 +22,26 @@ (channel-news (version 0) + (entry (commit "2161820ebbbab62a5ce76c9101ebaec54dc61586") + (title + (en "Risk of local privilege escalation during user account creation")) + (body + (en "A security vulnerability that can lead to local privilege +escalation has been found in the code that creates user accounts on Guix +System---Guix on other distros is unaffected. The system is only vulnerable +during the activation of user accounts that do not already exist. + +The attack can happen when @command{guix system reconfigure} is running. +Running @command{guix system reconfigure} can trigger the creation of new user +accounts if the configuration specifies new accounts. If a user whose account +is being created manages to log in after the account has been created but +before ``skeleton files'' have been copied to its home directory, they may, by +creating an appropriately-named symbolic link in the home directory pointing +to a sensitive file, such as @file{/etc/shadow}, get root privileges. + +See @uref{https://issues.guix.gnu.org/47584} for more information on this +bug."))) + (entry (commit "e52ec6c64a17a99ae4bb6ff02309067499915b06") (title (en "New supported platform: powerpc64le-linux") |