Linux Security
    Linux Security
    Linux Security

    openSUSE: 2020:1100-1: important: singularity

    Posted By
    An update that fixes three vulnerabilities is now available.
       openSUSE Security Update: Security update for singularity
    Announcement ID:    openSUSE-SU-2020:1100-1
    Rating:             important
    References:         #1174148 #1174150 #1174152 
    Cross-References:   CVE-2020-13845 CVE-2020-13846 CVE-2020-13847
    Affected Products:
                        openSUSE Backports SLE-15-SP2
       An update that fixes three vulnerabilities is now available.
       This update for singularity fixes the following issues:
       - New version 3.6.0. This version introduces a new signature format for
         SIF images, and changes to the signing / verification code to address
         the following security problems:
         - CVE-2020-13845, boo#1174150 In Singularity 3.x versions below 3.6.0,
           issues allow the ECL to be bypassed by a malicious user.
         - CVE-2020-13846, boo#1174148 In Singularity 3.5 the --all / -a option
           to singularity verify returns success even when some objects in a SIF
           container are not signed,
         or cannot be verified.
         - CVE-2020-13847, boo#1174152 In Singularity 3.x versions below 3.6.0,
           Singularity's sign and verify commands do not sign metadata found in
           the global header or data object descriptors of a SIF file, allowing
           an attacker to cause unexpected behavior. A signed container may
           verify successfully, even when it has been modified in ways that could
           be exploited to cause malicious behavior.
       - New features / functionalities
         - A new '--legacy-insecure' flag to verify allows verification of SIF
           signatures in the old, insecure format.
         - A new '-l / --logs' flag for instance list that shows the paths to
           instance STDERR / STDOUT log files.
         - The --json output of instance list now include paths to STDERR /
           STDOUT log files.
         - Singularity now supports the execution of minimal Docker/OCI
           containers that do not contain /bin/sh, e.g. docker://hello-world.
         - A new cache structure is used that is concurrency safe on a filesystem
           that supports atomic rename. If you downgrade to Singularity 3.5 or
           older after using 3.6 you will need to run singularity cache clean.
         - A plugin system rework adds new hook points that will allow the
           development of plugins that modify behavior of the runtime. An image
           driver concept is introduced for plugins to support new ways of
           handling image and
         overlay mounts. Plugins built for <=3.5 are not compatible with 3.6.
         - The --bind flag can now bind directories from a SIF or ext3 image into
           a container.
         - The --fusemount feature to mount filesystems to a container via FUSE
           drivers is now a supported feature (previously an experimental hidden
         - This permits users to mount e.g. sshfs and cvmfs filesystems to the
           container at runtime.
         - A new -c/--config flag allows an alternative singularity.conf to be
           specified by the root user, or all users in an unprivileged
         - A new --env flag allows container environment variables to be set via
           the Singularity command line.
         - A new --env-file flag allows container environment variables to be set
           from a specified file.
         - A new --days flag for cache clean allows removal of items older than a
           specified number of days. Replaces the --name flag which is not
           generally useful as the cache entries are stored by hash, not a
           friendly name.
       - Changed defaults / behaviours
        - New signature format (see security fixes above).
        - Fixed spacing of singularity instance list to be dynamically changing
          based off of input lengths instead of fixed number of spaces to account
          for long instance names.
        - Environment variables prefixed with SINGULARITYENV_ always take
          precedence over variables without SINGULARITYENV_ prefix.
        - The %post build section inherits environment variables from the base
        - %files from ... will now follow symlinks for sources that are directly
          specified, or directly resolved from a glob pattern. It will not follow
          symlinks found through directory traversal. This mirrors Docker
          multi-stage COPY behaviour.
        - Restored the CWD mount behaviour of v2, implying that CWD path is not
          recreated inside container and any symlinks in the CWD path are not
          resolved anymore to determine the destination path inside container.
        - The %test build section is executed the same manner as singularity test
        --fusemount with the container: default directive will foreground the
         FUSE process. Use container-daemon: for previous behavior.
       - Deprecate -a / --all option to sign/verify as new signature behavior
         makes this the default.
       - For more information about upstream changes, please check:
       - Removed --name flag for cache clean; replaced with --days.
       This update was imported from the openSUSE:Leap:15.2: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 Backports SLE-15-SP2:
          zypper in -t patch openSUSE-2020-1100=1
    Package List:
       - openSUSE Backports SLE-15-SP2 (aarch64 ppc64le s390x x86_64):


    LinuxSecurity Poll

    Tails is the most secure Linux distro out there.

    No answer selected. Please try again.
    Please select either existing option or enter your own, however not both.
    Please select minimum 0 answer(s) and maximum 2 answer(s).
    [{"id":"142","title":"Yes - Tails get my vote!","votes":"1","type":"x","order":"1","pct":100,"resources":[]},{"id":"143","title":"Nope - Parrot OS has surpassed Tails in its security and privacy.","votes":"0","type":"x","order":"2","pct":0,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350


    bottom 200

    Please enable / Bitte aktiviere JavaScript!
    Veuillez activer / Por favor activa el Javascript![ ? ]

    We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.