VMware Tanzu products update for Ruby

Published: 2023-10-19

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-28755 CVE-2023-36617
CWE-ID	CWE-185
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software Subscribe	VMware Tanzu Application Service for VMs Server applications / Other server solutions Isolation Segment Server applications / Other server solutions
Vendor	VMware, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Incorrect Regular Expression

EUVDB-ID: #VU74004

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2023-28755

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 URLs. A remote attacker can pass specially crafted URL to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware Tanzu Application Service for VMs: before 4.0.8

Isolation Segment: before 4.0.8

External links

http://tanzu.vmware.com/security/usn-6219-1

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. However, proof of concept for this vulnerability is available.

2) Incorrect Regular Expression

EUVDB-ID: #VU77803