openSUSE Security Update: Security update for singularity
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Announcement ID:    openSUSE-SU-2021:0810-1
Rating:             moderate
References:         #1184147 
Cross-References:   CVE-2021-29136
CVSS scores:
                    CVE-2021-29136 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
                    CVE-2021-29136 (SUSE): 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected Products:
                    openSUSE Backports SLE-15-SP2
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   An update that fixes one vulnerability is now available.

Description:

   This update for singularity fixes the following issues:

   singularity was updated to version 3.7.3:

   - Fix for CVE-2021-29136: A dependency used to extract docker/OCI image
     layers can be tricked into modifying host files by creating a malicious
     layer that has a symlink with the name "." (or "/"), when running as
     root.


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 Backports SLE-15-SP2:

      zypper in -t patch openSUSE-2021-810=1



Package List:

   - openSUSE Backports SLE-15-SP2 (aarch64 s390x x86_64):

      singularity-3.7.3-bp152.2.19.3


References:

   https://www.suse.com/security/cve/CVE-2021-29136.html
   https://bugzilla.suse.com/1184147