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Fedora 33: FEDORA-2021-324479472c Moderate: Sudo Race Condition

fedora
Calendar Grey January 19, 2021
Dist Fedora Esm H88
Ubuntu Upgrade Announcement UBUNTU-2021-225898321d addresses vulnerabilities in systemd, improving defense against elevation of privileges and exploitation attempts.
Rebase to 1.9.5p1 - updated sudo url Resolves: rhbz#1902758 - enabled python plugin as a subpackage Resolves: rhbz#1909299 - fixed double free in sss_to_sudoers Resolves: rhbz#1885...

Summary

Sudo (superuser do) allows a system administrator to give certain

users (or groups of users) the ability to run some (or all) commands

as root while logging all commands and arguments. Sudo operates on a

per-command basis. It is not a replacement for the shell. Features

include: the ability to restrict what commands a user may run on a

per-host basis, copious logging of each command (providing a clear

audit trail of who did what), a configurable timeout of the sudo

command, and the ability to use the same configuration file (sudoers)

on many different machines.

Rebase to 1.9.5p1 - updated sudo url Resolves: rhbz#1902758 - enabled python

plugin as a subpackage Resolves: rhbz#1909299 - fixed double free in

sss_to_sudoers Resolves: rhbz#1885874 - fixed CVE-2021-23239 sudo: possible

directory existence test due to race condition in sudoedit Resolves:

rhbz#1915055 - fixed CVE-2021-23240 sudo: symbolic link attack in SELinux-enabled sudoedit Resolves: rhbz#1915054

* Mon Jan 18 2021 Radovan Sroka - 1.9.5p1-1

- rebase to 1.9.5p1

- updated sudo url

Resolves: rhbz#1902758

- enabled python plugin as a subpackage

Resolves: rhbz#1909299

- fixed double free in sss_to_sudoers

Resolves: rhbz#1885874

- fixed CVE-2021-23239 sudo: possible directory existence test due to race condition in sudoedit

Resolves: rhbz#1915055

- fixed CVE-2021-23240 sudo: symbolic link attack in SELinux-enabled sudoedit

Resolves: rhbz#1915054

[ 1 ] Bug #1915052 - CVE-2021-23239 sudo: possible directory existence test due to race condition in sudoedit

https://bugzilla.redhat.com/show_bug.cgi?id=1915052

[ 2 ] Bug #1915053 - CVE-2021-23240 sudo: symbolic link attack in SELinux-enabled sudoedit

https://bugzilla.redhat.com/show_bug.cgi?id=1915053

su -c 'dnf upgrade --advisory FEDORA-2021-324479472c' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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Change Log

References

Update Instructions

Severity
important
Lowest
Low
Medium
High
Critical

Product: Fedora 33
Version: 1.9.5p1
Release: 1.fc33
URL: Summary : Allows restricted root access for specified users

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