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             AUSCERT External Security Bulletin Redistribution

                      Security update for slurm_20_02
                             23 December 2020


        AusCERT Security Bulletin Summary

Product:           slurm_20_02
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-27746 CVE-2020-27745 

Reference:         ESB-2020.4501

Original Bulletin: 

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SUSE Security Update: Security update for slurm_20_02


Announcement ID:   SUSE-SU-2020:3892-1
Rating:            important
References:        #1178890 #1178891
Cross-References:  CVE-2020-27745 CVE-2020-27746
Affected Products:
                   SUSE Linux Enterprise Module for HPC 12

An update that fixes two vulnerabilities is now available.


This update for slurm_20_02 fixes the following issues:
Security issues fixed:

  o CVE-2020-27745: Fixed a potential buffer overflow from use of unpackmem
  o CVE-2020-27746: Fixed a potential leak of the magic cookie when sent as an
    argument to the xauth command (bsc#1178891).

Non-security issues fixed:

  o Updated to 20.02.6. Full log and details available at: * https://

  o Updated to 20.02.5, changes: * Fix leak of TRESRunMins when job time is
    changed with --time-min * pam_slurm - explicitly initialize slurm config to
    support configless mode. * scontrol - Fix exit code when creating/updating
    reservations with wrong Flags. * When a GRES has a no_consume flag, report
    0 for allocated. * Fix cgroup cleanup by jobacct_gather/cgroup. * When
    creating reservations/jobs don't allow counts on a feature unless using an
    XOR. * Improve number of boards discovery * Fix updating a reservation
    NodeCnt on a zero-count reservation. * slurmrestd - provide an explicit
    error messages when PSK auth fails. * cons_tres - fix job requesting single
    gres per-node getting two or more nodes with less CPUs than requested
    per-task. * cons_tres - fix calculation of cores when using gres and
    cpus-per-task. * cons_tres - fix job not getting access to socket without
    GPU or with less than --gpus-per-socket when not enough cpus available on
    required socket and not using --gres-flags=enforce binding. * Fix HDF5 type
    version build error. * Fix creation of CoreCnt only reservations when the
    first node isn't available. * Fix wrong DBD Agent queue size in sdiag when
    using accounting_storage/none. * Improve job constraints XOR option logic.
    * Fix preemption of hetjobs when needed nodes not in leader component. *
    Fix wrong bit_or() messing potential preemptor jobs node bitmap, causing
    bad node deallocations and even allocation of nodes from other partitions.
    * Fix double-deallocation of preempted non-leader hetjob components. *
    slurmdbd - prevent truncation of the step nodelists over 4095. * Fix nodes
    remaining in drain state state after rebooting with ASAP option. - changes
    from 20.02.4:
    * srun - suppress job step creation warning message when waiting on
    PrologSlurmctld. * slurmrestd - fix incorrect return values in
    data_list_for_each() functions. * mpi/pmix - fix issue where HetJobs could
    fail to launch. * slurmrestd - set content-type header in responses. * Fix
    cons_res GRES overallocation for --gres-flags=disable-binding. * Fix
    cons_res incorrectly filtering cores with respect to GRES locality for
    --gres-flags=disable-binding requests. * Fix regression where a dependency
    on multiple jobs in a single array using underscores would only add the
    first job. * slurmrestd - fix corrupted output due to incorrect use of
    memcpy(). * slurmrestd - address a number of minor Coverity warnings. *
    Handle retry failure when slurmstepd is communicating with srun correctly.
    * Fix jobacct_gather possibly duplicate stats when _is_a_lwp error shows
    up. * Fix tasks binding to GRES which are closest to the allocated CPUs. *
    Fix AMD GPU ROCM 3.5 support. * Fix handling of job arrays in sacct when
    querying specific steps. * slurmrestd - avoid fallback to local socket
    authentication if JWT authentication is ill-formed. * slurmrestd - restrict
    ability of requests to use different authentication plugins. * slurmrestd -
    unlink named unix sockets before closing. * slurmrestd - fix invalid
    formatting in openapi.json. * Fix batch jobs stuck in CF state on FrontEnd
    mode. * Add a separate explicit error message when rejecting changes to
    active node features. * cons_common/job_test - fix slurmctld SIGABRT due to
    double-free. * Fix updating reservations to set the duration correctly if
    updating the start time. * Fix update reservation to promiscuous mode. *
    Fix override of job tasks count to max when ntasks-per-node present. * Fix
    min CPUs per node not being at least CPUs per task requested. * Fix CPUs
    allocated to match CPUs requested when requesting GRES and threads per core
    equal to one. * Fix NodeName config parsing with Boards and without CPUs. *
    Ensure SLURM_JOB_USER and SLURM_JOB_UID are set in SrunProlog/Epilog. * Fix
    error messages for certain invalid salloc/sbatch/srun options. * pmi2 -
    clean up sockets at step termination. * Fix 'scontrol hold' to work with
    'JobName'. * sbatch - handle --uid/--gid in #SBATCH directives properly. *
    Fix race condition in job termination on slurmd. * Print specific error
    messages if trying to run use certain priority/multifactor factors that
    cannot work without SlurmDBD. * Avoid partial GRES allocation when
    --gpus-per-job is not satisfied. * Cray - Avoid referencing a variable
    outside of it's correct scope when dealing with creating steps within a het
    job. * slurmrestd - correctly handle larger addresses from accept(). *
    Avoid freeing wrong pointer with SlurmctldParameters=max_dbd_msg_action
    with another option after that. * Restore MCS label when suspended job is
    resumed. * Fix insufficient lock levels. * slurmrestd - use errno from job
    submission. * Fix "user" filter for sacctmgr show transactions. * Fix
    preemption logic. * Fix no_consume GRES for exclusive (whole node)
    requests. * Fix regression in 20.02 that caused an infinite loop in
    slurmctld when requesting --distribution=plane for the job. * Fix parsing
    of the --distribution option. * Add CONF READ_LOCK to
    _handle_fed_send_job_sync. * prep/script - always call slurmctld PrEp
    callback in _run_script(). * Fix node estimation for jobs that use GPUs or
    --cpus-per-task. * Fix jobcomp, job_submit and cli_filter Lua
    implementation plugins causing slurmctld and/or job submission CLI tools
    segfaults due to bad return handling when the respective Lua script failed
    to load. * Fix propagation of gpu options through hetjob components. * Add
    SLURM_CLUSTERS environment variable to scancel. * Fix packing/unpacking of
    "unlinked" jobs. * Connect slurmstepd's stderr to srun for steps launched
    with --pty. * Handle MPS correctly when doing exclusive allocations. *
    slurmrestd - fix compiling against libhttpparser in a non-default path. *
    slurmrestd - avoid compilation issues with libhttpparser < 2.6. * Fix
    compile issues when compiling slurmrestd without --enable-debug. * Reset
    idle time on a reservation that is getting purged. * Fix reoccurring
    reservations that have Purge_comp= to keep correct duration if they are
    purged. * scontrol - changed the "PROMISCUOUS" flag to "MAGNETIC" * Early
    return from epilog_set_env in case of no_consume. * Fix cons_common/
    job_test start time discovery logic to prevent skewed results between "will
    run test" executions. * Ensure TRESRunMins limits are maintained during
    "scontrol reconfigure". * Improve error message when host lookup fails.

Patch Instructions:

To install this SUSE 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:

  o SUSE Linux Enterprise Module for HPC 12:
    zypper in -t patch SUSE-SLE-Module-HPC-12-2020-3892=1

Package List:

  o SUSE Linux Enterprise Module for HPC 12 (aarch64 x86_64):


  o https://www.suse.com/security/cve/CVE-2020-27745.html
  o https://www.suse.com/security/cve/CVE-2020-27746.html
  o https://bugzilla.suse.com/1178890
  o https://bugzilla.suse.com/1178891

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