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openSUSE Leap 15.1 and 15.2 Security Advisory for Singularity

opensuse
Calendar Grey September 21, 2020
Dist Opensuse Esm H88
This report details a critical software enhancement for Singularity which rectifies a pair of security flaws identified in openSUSE Leap versions 15.1 and 15.2.
An update that fixes two vulnerabilities is now available.

Description

This update for singularity fixes the following issues:

New version 3.6.3, addresses the following security issues:

- CVE-2020-25039, boo#1176705

When a Singularity action command (run, shell, exec) is run with the

fakeroot or user namespace option, Singularity will extract a container

image to a temporary sandbox directory. Due to insecure permissions on the

temporary directory it is possible for any user with access to the system

to read the contents of the image. Additionally, if the image contains a

world-writable file or directory, it is possible for a user to inject

arbitrary content into the running container.

- CVE-2020-25040, boo#1176707

When a Singularity command that results in a container build operation

is executed, it is possible for a user with access to the system to read

the contents of the image during the build. Additionally, if the image

contains a world-writable file or directory, it is possible for a user to

...

Read the Full Advisory

Patch

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-2020-1497=1

- openSUSE Leap 15.1:

zypper in -t patch openSUSE-2020-1497=1

Package List

- openSUSE Leap 15.2 (x86_64):

singularity-3.6.3-lp152.2.6.1

singularity-debuginfo-3.6.3-lp152.2.6.1

- openSUSE Leap 15.1 (x86_64):

singularity-3.6.3-lp151.2.9.1

singularity-debuginfo-3.6.3-lp151.2.9.1

References

https://www.suse.com/security/cve/CVE-2020-25039.html

https://www.suse.com/security/cve/CVE-2020-25040.html

https://bugzilla.suse.com/1176705

https://bugzilla.suse.com/1176707

--

Announcement ID: openSUSE-SU-2020:1497-1
Rating: moderate
Affected Products: openSUSE Leap 15.2 openSUSE Leap 15.1

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