CVE-2023-34059 - File Descriptor Hijack vulnerability in open-vm-tools

[VMware Security Response Center <security () vmware com>]

Description

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CVE-2023-34059: open-vm-tools contains a file descriptor hijack vulnerability in the vmware-user-suid-wrapper. VMware 
has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 7.4. 
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H



Known Attack Vectors

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A malicious actor with non-root privileges may be able to hijack the /dev/uinput file descriptor allowing them to 
simulate user inputs.



Acknowledgement

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VMware would like to thank Matthias Gerstner of the SUSE Linux Security Team for reporting this vulnerability to us.



Remediation

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The following patch is provided for all open-vm-tools releases 11.0.0 through 12.3.0



https://github.com/vmware/open-vm-tools/blob/CVE-2023-34059.patch/CVE-2023-34059.patch


The patches have been tested against the above open-vm-tools releases.  Each applies cleanly with:



git am for a git repository.

patch -p2 in the top directory of an open-vm-tools source tree.



--------------

Edward Hawkins

Staff-2 Technical Program Manager

security () vmware com<mailto:security () vmware com>