SUSE update for zstd

Published: 2021-03-24

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-24031 CVE-2021-24032
CWE-ID	CWE-276
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE MicroOS Operating systems & Components / Operating system SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system libzstd1-32bit-debuginfo Operating systems & Components / Operating system package or component libzstd1-32bit Operating systems & Components / Operating system package or component zstd Operating systems & Components / Operating system package or component libzstd-devel Operating systems & Components / Operating system package or component zstd-debugsource Operating systems & Components / Operating system package or component zstd-debuginfo Operating systems & Components / Operating system package or component libzstd1-debuginfo Operating systems & Components / Operating system package or component libzstd1 Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Incorrect default permissions

EUVDB-ID: #VU51639

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-24031

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application within the command-line utility. A remote attacker can view contents of files and directories or modify them.

Mitigation

Update the affected package zstd to the latest version.

Vulnerable software versions

SUSE MicroOS: 5.0

SUSE Linux Enterprise Module for Basesystem: 15-SP2

libzstd1-32bit-debuginfo: before 1.4.4-1.6.1

libzstd1-32bit: before 1.4.4-1.6.1

zstd: before 1.4.4-1.6.1

libzstd-devel: before 1.4.4-1.6.1

zstd-debugsource: before 1.4.4-1.6.1

zstd-debuginfo: before 1.4.4-1.6.1

libzstd1-debuginfo: before 1.4.4-1.6.1

libzstd1: before 1.4.4-1.6.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20210948-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Incorrect default permissions

EUVDB-ID: #VU51640