SUSE update for systemd



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-33910
CWE-ID CWE-789
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		SUSE Linux Enterprise Software Development Kit
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

systemd-bash-completion
Operating systems & Components / Operating system package or component

systemd-debuginfo-32bit
Operating systems & Components / Operating system package or component

systemd-32bit
Operating systems & Components / Operating system package or component

libudev1-debuginfo-32bit
Operating systems & Components / Operating system package or component

libudev1-32bit
Operating systems & Components / Operating system package or component

libsystemd0-debuginfo-32bit
Operating systems & Components / Operating system package or component

libsystemd0-32bit
Operating systems & Components / Operating system package or component

udev-debuginfo
Operating systems & Components / Operating system package or component

udev
Operating systems & Components / Operating system package or component

systemd-sysvinit
Operating systems & Components / Operating system package or component

systemd
Operating systems & Components / Operating system package or component

libudev1-debuginfo
Operating systems & Components / Operating system package or component

libudev1
Operating systems & Components / Operating system package or component

libsystemd0-debuginfo
Operating systems & Components / Operating system package or component

libsystemd0
Operating systems & Components / Operating system package or component

systemd-devel
Operating systems & Components / Operating system package or component

systemd-debugsource
Operating systems & Components / Operating system package or component

systemd-debuginfo
Operating systems & Components / Operating system package or component

libudev-devel
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Uncontrolled Memory Allocation

EUVDB-ID: #VU55034

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-33910

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

Exploit availability: Yes

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to stack exhaustion within the basic/unit-name.c in systemd. A local user can crash the systemd (PID 1) and cause a kernel panic.

Mitigation

Update the affected package systemd to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

systemd-bash-completion: before 228-157.33.1

systemd-debuginfo-32bit: before 228-157.33.1

systemd-32bit: before 228-157.33.1

libudev1-debuginfo-32bit: before 228-157.33.1

libudev1-32bit: before 228-157.33.1

libsystemd0-debuginfo-32bit: before 228-157.33.1

libsystemd0-32bit: before 228-157.33.1

udev-debuginfo: before 228-157.33.1

udev: before 228-157.33.1

systemd-sysvinit: before 228-157.33.1

systemd: before 228-157.33.1

libudev1-debuginfo: before 228-157.33.1

libudev1: before 228-157.33.1

libsystemd0-debuginfo: before 228-157.33.1

libsystemd0: before 228-157.33.1

systemd-devel: before 228-157.33.1

systemd-debugsource: before 228-157.33.1

systemd-debuginfo: before 228-157.33.1

libudev-devel: before 228-157.33.1

CPE2.3 External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213611-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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