CVE-2023-34058 Security feature bypass in VMware Tools

What is CVE-2023-34058?

CVE-2023-34058 is a high-severity vulnerability in Debian Debian Linux, published on 27 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

VMware Tools contains a SAML token signature bypass vulnerability. A malicious actor that has been granted Guest Operation Privileges https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html  in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias https://vdc-download.vmware.com/vmwb-repository/dcr-public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html .

Weakness: CWE-347

Which versions are affected by CVE-2023-34058?

It affects 4 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Vmware Open Vm Tools, Vmware Tools.

How do I fix CVE-2023-34058?

Apply the vendor's patch.

Is CVE-2023-34058 being exploited?

There is no known exploitation of CVE-2023-34058 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-31718, DEBIAN-CVE-2023-34058, GHSA-h5hf-5wcj-6hmf, UBUNTU-CVE-2023-34058.