SUSE update for python-Pillow

Published: 2021-09-27

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2021-23437
CWE-ID	CWE-185
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE OpenStack Cloud Crowbar Operating systems & Components / Operating system SUSE OpenStack Cloud Operating systems & Components / Operating system python-Pillow-debugsource Operating systems & Components / Operating system package or component python-Pillow-debuginfo Operating systems & Components / Operating system package or component python-Pillow Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Incorrect Regular Expression

EUVDB-ID: #VU68608

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23437

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Update the affected package python-Pillow to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE OpenStack Cloud: 9

python-Pillow-debugsource: before 5.2.0-3.14.1

python-Pillow-debuginfo: before 5.2.0-3.14.1

python-Pillow: before 5.2.0-3.14.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20213235-1/

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.