RedHat: RHSA-2021-1723:01 Low: sudo security and bug fix update
Summary
The sudo packages contain the sudo utility which allows system
administrators to provide certain users with the permission to execute
privileged commands, which are used for system management purposes, without
having to log in as root.
Security Fix(es):
* sudo: symbolic link attack in SELinux-enabled sudoedit (CVE-2021-23240)
* sudo: possible directory existence test due to race condition in sudoedit
(CVE-2021-23239)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.4 Release Notes linked from the References section.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2021-23239 https://access.redhat.com/security/cve/CVE-2021-23240 https://access.redhat.com/security/updates/classification/#low https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/
Package List
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
sudo-1.8.29-7.el8.src.rpm
aarch64:
sudo-1.8.29-7.el8.aarch64.rpm
sudo-debuginfo-1.8.29-7.el8.aarch64.rpm
sudo-debugsource-1.8.29-7.el8.aarch64.rpm
ppc64le:
sudo-1.8.29-7.el8.ppc64le.rpm
sudo-debuginfo-1.8.29-7.el8.ppc64le.rpm
sudo-debugsource-1.8.29-7.el8.ppc64le.rpm
s390x:
sudo-1.8.29-7.el8.s390x.rpm
sudo-debuginfo-1.8.29-7.el8.s390x.rpm
sudo-debugsource-1.8.29-7.el8.s390x.rpm
x86_64:
sudo-1.8.29-7.el8.x86_64.rpm
sudo-debuginfo-1.8.29-7.el8.x86_64.rpm
sudo-debugsource-1.8.29-7.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for sudo is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64
Bugs Fixed
1915052 - CVE-2021-23239 sudo: possible directory existence test due to race condition in sudoedit
1915053 - CVE-2021-23240 sudo: symbolic link attack in SELinux-enabled sudoedit
1923825 - Upstream URL need to be updated
