A sudo security update has been released for openSUSE Leap 15.2 to address three vulnerabilities.

openSUSE-SU-2021:0170-1: important: Security update for sudo

openSUSE Security Update: Security update for sudo
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Announcement ID: openSUSE-SU-2021:0170-1
Rating: important
References: #1180684 #1180685 #1180687 #1181090
Cross-References: CVE-2021-23239 CVE-2021-23240 CVE-2021-3156

Affected Products:
openSUSE Leap 15.2
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An update that solves three vulnerabilities and has one
errata is now available.

Description:

This update for sudo fixes the following issues:

- A Heap-based buffer overflow in sudo could be exploited to allow a user
to gain root privileges [bsc#1181090,CVE-2021-3156]
- It was possible for a user to test for the existence of a directory due
to a Race Condition in `sudoedit` [bsc#1180684,CVE-2021-23239]
- A Possible Symlink Attack vector existed in `sudoedit` if SELinux was
running in permissive mode [bsc#1180685, CVE-2021-23240]
- It was possible for a User to enable Debug Settings not Intended for
them [bsc#1180687]

This update was imported from the SUSE:SLE-15:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 15.2:

zypper in -t patch openSUSE-2021-170=1


Package List:

- openSUSE Leap 15.2 (i586 x86_64):

sudo-1.8.22-lp152.8.6.1
sudo-debuginfo-1.8.22-lp152.8.6.1
sudo-debugsource-1.8.22-lp152.8.6.1
sudo-devel-1.8.22-lp152.8.6.1
sudo-test-1.8.22-lp152.8.6.1

References:

  https://www.suse.com/security/cve/CVE-2021-23239.html
  https://www.suse.com/security/cve/CVE-2021-23240.html
  https://www.suse.com/security/cve/CVE-2021-3156.html
  https://bugzilla.suse.com/1180684
  https://bugzilla.suse.com/1180685
  https://bugzilla.suse.com/1180687
  https://bugzilla.suse.com/1181090