VMware Tanzu products update for Heimdal

1) Out-of-bounds read

EUVDB-ID: #VU69362

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-2022-41916

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in Heimdal's PKI certificate validation library. A remote attacker can pass a specially crafted certificate to the affected application, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

The vulnerability affects KDC (via PKINIT), kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509.

Mitigation

Install update from vendor's website.

Vulnerable software versions

VMware Tanzu Application Service for VMs: before 4.0.0

Isolation Segment: before 4.0.0

Platform Automation Toolkit: before 5.1.0

VMware Tanzu Operations Manager: before 2.10.52

Tanzu Greenplum for Kubernetes: before 2.0.0

External links

http://tanzu.vmware.com/security/usn-5766-1

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.