VMware Tanzu products update for libx11

1) Out-of-bounds write

EUVDB-ID: #VU77450

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3138

CWE-ID: CWE-787 - Out-of-bounds write

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 error within src/InitExt.c in libX11. A remote attacker can send specially crafted data to the server, trigger an out-of-bounds write and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Isolation Segment: 2.11.0 - 4.0.4

VMware Tanzu Application Service for VMs: 2.11.0 - 4.0.4

VMware Tanzu Operations Manager: 2.7 - 2.10.2

Platform Automation Toolkit: 4.0.0 - 4.3.4

External links

http://tanzu.vmware.com/security/usn-6168-2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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