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SUSE SLES12: libsystemd0 / libsystemd0-32bit / libudev-devel / libudev1 / etc (SUSE-SU-2021:2423-1)

medium Nessus Plugin ID 151980

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2021:2423-1 advisory.

 Security issues fixed:

 - CVE-2021-33910: Fixed a denial of service (stack exhaustion) in systemd (PID 1) (bsc#1188063)

 Other fixes:

 - mount-util: shorten the loop a bit (#7545)
 - mount-util: do not use the official MAX_HANDLE_SZ (#7523)
 - mount-util: tape over name_to_handle_at() flakiness (#7517) (bsc#1184761)
 - mount-util: fix bad indenting
 - mount-util: EOVERFLOW might have other causes than buffer size issues
 - mount-util: fix error propagation in fd_fdinfo_mnt_id()
 - mount-util: drop exponential buffer growing in name_to_handle_at_loop()
 - udev: port udev_has_devtmpfs() to use path_get_mnt_id()
 - mount-util: add new path_get_mnt_id() call that queries the mnt ID of a path
 - mount-util: add name_to_handle_at_loop() wrapper around name_to_handle_at()
 - mount-util: accept that name_to_handle_at() might fail with EPERM (#5499)
 - basic: fallback to the fstat if we don't have access to the /proc/self/fdinfo
 - sysusers: use the usual comment style
 - test/TEST-21-SYSUSERS: add tests for new functionality
 - sysusers: allow admin/runtime overrides to command-line config
 - basic/strv: add function to insert items at position
 - sysusers: allow the shell to be specified
 - sysusers: move various user credential validity checks to src/basic/
 - man: reformat table in sysusers.d(5)
 - sysusers: take configuration as positional arguments
 - sysusers: emit a bit more info at debug level when locking fails
 - sysusers: allow force reusing existing user/group IDs (#8037)
 - sysusers: ensure GID in uid:gid syntax exists
 - sysusers: make ADD_GROUP always create a group
 - test: add TEST-21-SYSUSERS test
 - sysuser: use OrderedHashmap
 - sysusers: allow uid:gid in sysusers.conf files
 - sysusers: fix memleak (#4430)
 - These commits implement the option '--replace' for systemd-sysusers so %sysusers_create_package can be introduced in SLE and packages can rely on this rpm macro without wondering whether the macro is available on the different target the package is submitted to.
 - Expect 644 permissions for /usr/lib/udev/compat-symlink-generation (bsc#1185807)
 - systemctl: add --value option
 - execute: make sure to call into PAM after initializing resource limits (bsc#1184967)
 - rlimit-util: introduce setrlimit_closest_all()
 - system-conf: drop reference to ShutdownWatchdogUsec=
 - core: rename ShutdownWatchdogSec to RebootWatchdogSec (bsc#1185331)
 - Return -EAGAIN instead of -EALREADY from unit_reload (bsc#1185046)
 - rules: don't ignore Xen virtual interfaces anymore (bsc#1178561)
 - write_net_rules: set execute bits (bsc#1178561)
 - udev: rework network device renaming
 - Revert 'Revert 'udev: network device renaming - immediately give up if the target name isn't available''

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1178561

https://bugzilla.suse.com/1184761

https://bugzilla.suse.com/1184967

https://bugzilla.suse.com/1185046

https://bugzilla.suse.com/1185331

https://bugzilla.suse.com/1185807

https://bugzilla.suse.com/1188063

https://www.suse.com/security/cve/CVE-2021-33910

http://www.nessus.org/u?57c2027c

Plugin Details

Severity: Medium

ID: 151980

File Name: suse_SU-2021-2423-1.nasl

Version: 1.8

Type: Local

Agent: unix

Published: 7/22/2021

Updated: 6/25/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2021-33910

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:libudev1, p-cpe:/a:novell:suse_linux:libudev-devel, p-cpe:/a:novell:suse_linux:libudev1-32bit, p-cpe:/a:novell:suse_linux:udev, p-cpe:/a:novell:suse_linux:systemd, p-cpe:/a:novell:suse_linux:systemd-bash-completion, p-cpe:/a:novell:suse_linux:libsystemd0, p-cpe:/a:novell:suse_linux:libsystemd0-32bit, p-cpe:/a:novell:suse_linux:systemd-32bit, p-cpe:/a:novell:suse_linux:systemd-devel, p-cpe:/a:novell:suse_linux:systemd-sysvinit

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/21/2021

Vulnerability Publication Date: 7/20/2021

Reference Information

CVE: CVE-2021-33910

IAVA: 2021-A-0350

SuSE: SUSE-SU-2021:2423-1