Race condition in Slurm - CVE-2020-27746

Vulnerability identifier: #VU50142

CSH Severity: Low

CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-27746

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a race condition in the xauth for X11 magic cookies when reading data on the /proc filesystem. A local user can exploit the race and gain unauthorized access to sensitive information.

Slurm
SUSE Linux Enterprise Module for HPC
Ubuntu
Fedora
slurm-llnl (Debian package)
slurmctld (Ubuntu package)
slurm-llnl-sview (Ubuntu package)
slurm-llnl-torque (Ubuntu package)
slurm-llnl-basic-plugins (Ubuntu package)
libslurm26 (Ubuntu package)
libslurmdb26 (Ubuntu package)
slurm-wlm-basic-plugins (Ubuntu package)
sview (Ubuntu package)
libslurmdb-perl (Ubuntu package)
slurm-llnl-slurmdbd (Ubuntu package)
slurmdbd (Ubuntu package)
slurm-llnl (Ubuntu package)
slurm-wlm-emulator (Ubuntu package)
libslurmdb29 (Ubuntu package)
libslurm-perl (Ubuntu package)
libslurm29 (Ubuntu package)
libpmi0 (Ubuntu package)
slurm-wlm (Ubuntu package)
slurm-client (Ubuntu package)
libpam-slurm (Ubuntu package)
slurmd (Ubuntu package)
slurm-wlm-torque (Ubuntu package)
slurm-client-emulator (Ubuntu package)
pdsh-machines-debuginfo
pdsh-netgroup
pdsh-netgroup-debuginfo
pdsh-slurm
pdsh-slurm_18_08
pdsh-slurm_18_08-debuginfo
pdsh-slurm_20_02
pdsh-slurm_20_02-debuginfo
pdsh-slurm_20_11
pdsh-slurm_20_11-debuginfo
pdsh_slurm_18_08-debugsource
pdsh_slurm_20_02-debugsource
pdsh_slurm_20_11-debugsource
pdsh-slurm-debuginfo
pdsh-genders-debuginfo
pdsh-genders
pdsh-dshgroup-debuginfo
pdsh-dshgroup
pdsh-debugsource
pdsh-debuginfo
pdsh
pdsh-machines
slurm
slurm_20_11-sql-debuginfo
slurm_20_11-node
slurm_20_11-node-debuginfo
slurm_20_11-pam_slurm
slurm_20_11-pam_slurm-debuginfo
slurm_20_11-plugins
slurm_20_11-plugins-debuginfo
slurm_20_11-slurmdbd
slurm_20_11-slurmdbd-debuginfo
slurm_20_11-sql
slurm_20_11-munge-debuginfo
slurm_20_11-sview
slurm_20_11-sview-debuginfo
slurm_20_11-torque
slurm_20_11-torque-debuginfo
slurm_20_11-webdoc
libslurm36-debuginfo
slurm_20_11-config
libpmi0_20_11-debuginfo
libpmi0_20_11
libnss_slurm2_20_11-debuginfo
libnss_slurm2_20_11
perl-slurm_20_11
perl-slurm_20_11-debuginfo
slurm_20_11
slurm_20_11-auth-none
slurm_20_11-auth-none-debuginfo
libslurm36
slurm_20_11-config-man
slurm_20_11-debuginfo
slurm_20_11-debugsource
slurm_20_11-devel
slurm_20_11-doc
slurm_20_11-lua
slurm_20_11-lua-debuginfo
slurm_20_11-munge

Install updates from vendor's website.

Slurm - addressed in versions 19.05.8.1, 20.02.6.1
slurm-llnl (Debian package) - update to 18.08.5.2-1+deb10u2
slurmctld (Ubuntu package) - update to Ubuntu Pro
slurm-llnl-sview (Ubuntu package) - update to Ubuntu Pro
slurm-llnl-torque (Ubuntu package) - update to Ubuntu Pro
slurm-llnl-basic-plugins (Ubuntu package) - update to Ubuntu Pro
libslurm26 (Ubuntu package) - update to Ubuntu Pro
libslurmdb26 (Ubuntu package) - update to Ubuntu Pro
slurm-wlm-basic-plugins (Ubuntu package) - update to Ubuntu Pro
sview (Ubuntu package) - update to Ubuntu Pro
libslurmdb-perl (Ubuntu package) - update to Ubuntu Pro
slurm-llnl-slurmdbd (Ubuntu package) - update to Ubuntu Pro
slurmdbd (Ubuntu package) - update to Ubuntu Pro
slurm-llnl (Ubuntu package) - update to Ubuntu Pro
slurm-wlm-emulator (Ubuntu package) - update to Ubuntu Pro
libslurmdb29 (Ubuntu package) - update to Ubuntu Pro
libslurm-perl (Ubuntu package) - update to Ubuntu Pro
libslurm29 (Ubuntu package) - update to Ubuntu Pro
libpmi0 (Ubuntu package) - update to Ubuntu Pro
slurm-wlm (Ubuntu package) - update to Ubuntu Pro
slurm-client (Ubuntu package) - update to Ubuntu Pro
libpam-slurm (Ubuntu package) - update to Ubuntu Pro
slurmd (Ubuntu package) - update to Ubuntu Pro
slurm-wlm-torque (Ubuntu package) - update to Ubuntu Pro
slurm-client-emulator (Ubuntu package) - update to Ubuntu Pro
pdsh-machines-debuginfo - update to 2.34-7.32.1
pdsh-netgroup - update to 2.34-7.32.1
pdsh-netgroup-debuginfo - update to 2.34-7.32.1
pdsh-slurm - update to 2.34-7.32.1
pdsh-slurm_18_08 - update to 2.34-7.32.1
pdsh-slurm_18_08-debuginfo - update to 2.34-7.32.1
pdsh-slurm_20_02 - update to 2.34-7.32.1
pdsh-slurm_20_02-debuginfo - update to 2.34-7.32.1
pdsh-slurm_20_11 - update to 2.34-7.32.1
pdsh-slurm_20_11-debuginfo - update to 2.34-7.32.1
pdsh_slurm_18_08-debugsource - update to 2.34-7.32.1
pdsh_slurm_20_02-debugsource - update to 2.34-7.32.1
pdsh_slurm_20_11-debugsource - update to 2.34-7.32.1
pdsh-slurm-debuginfo - update to 2.34-7.32.1
pdsh-genders-debuginfo - update to 2.34-7.32.1
pdsh-genders - update to 2.34-7.32.1
pdsh-dshgroup-debuginfo - update to 2.34-7.32.1
pdsh-dshgroup - update to 2.34-7.32.1
pdsh-debugsource - update to 2.34-7.32.1
pdsh-debuginfo - update to 2.34-7.32.1
pdsh - update to 2.34-7.32.1
pdsh-machines - update to 2.34-7.32.1
slurm - addressed in versions 19.05.8-1.fc31, 19.05.8-1.fc32, 20.02.6-1.fc33
slurm_20_11-sql-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-node - update to 20.11.4-3.5.1
slurm_20_11-node-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-pam_slurm - update to 20.11.4-3.5.1
slurm_20_11-pam_slurm-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-plugins - update to 20.11.4-3.5.1
slurm_20_11-plugins-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-slurmdbd - update to 20.11.4-3.5.1
slurm_20_11-slurmdbd-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-sql - update to 20.11.4-3.5.1
slurm_20_11-munge-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-sview - update to 20.11.4-3.5.1
slurm_20_11-sview-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-torque - update to 20.11.4-3.5.1
slurm_20_11-torque-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-webdoc - update to 20.11.4-3.5.1
libslurm36-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-config - update to 20.11.4-3.5.1
libpmi0_20_11-debuginfo - update to 20.11.4-3.5.1
libpmi0_20_11 - update to 20.11.4-3.5.1
libnss_slurm2_20_11-debuginfo - update to 20.11.4-3.5.1
libnss_slurm2_20_11 - update to 20.11.4-3.5.1
perl-slurm_20_11 - update to 20.11.4-3.5.1
perl-slurm_20_11-debuginfo - update to 20.11.4-3.5.1
slurm_20_11 - update to 20.11.4-3.5.1
slurm_20_11-auth-none - update to 20.11.4-3.5.1
slurm_20_11-auth-none-debuginfo - update to 20.11.4-3.5.1
libslurm36 - update to 20.11.4-3.5.1
slurm_20_11-config-man - update to 20.11.4-3.5.1
slurm_20_11-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-debugsource - update to 20.11.4-3.5.1
slurm_20_11-devel - update to 20.11.4-3.5.1
slurm_20_11-doc - update to 20.11.4-3.5.1
slurm_20_11-lua - update to 20.11.4-3.5.1
slurm_20_11-lua-debuginfo - update to 20.11.4-3.5.1
slurm_20_11-munge - update to 20.11.4-3.5.1

• https://www.debian.org/security/2021/dsa-4841
• https://www.schedmd.com/news.php

• Multiple vulnerabilities in Slurm
• Debian update for slurm-llnl
• Ubuntu update for slurm-llnl
• SUSE update for slurm_20_11 and pdsh
• Fedora 33 update for slurm
• Fedora 32 update for slurm
• Fedora 31 update for slurm