Headline
CVE-2023-34038: VMSA-2023-0017
VMware Horizon Server contains an information disclosure vulnerability. A malicious actor with network access may be able to access information relating to the internal network configuration.
Advisory ID: VMSA-2023-0017
CVSSv3 Range: 5.3
Issue Date: 2023-08-03
Updated On: 2023-08-03 (Initial Advisory)
CVE(s): CVE-2023-34037, CVE-2023-34038
Synopsis: VMware Horizon Server updates address multiple security vulnerabilities (CVE-2023-34037, CVE-2023-34038)
****1. Impacted Products****
- VMware Horizon Server
****2. Introduction****
Multiple vulnerabilities in VMware Horizon Server were responsibly reported to VMware. Updates are available to remediate these vulnerabilities in affected VMware products.
****3a. Request smuggling vulnerability (CVE-2023-34037)****
VMware Horizon Server contains a HTTP request smuggling vulnerability. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 5.3.
A malicious actor with network access may be able to perform HTTP smuggle requests.
To remediate CVE-2023-34037 apply the patches listed in the ‘Fixed Version’ column of the ‘Response Matrix’ below.
VMware would like to thank Ricter Z, and Matt Landers of OccamSec for independently reporting this issue to us.
****3b. Information disclosure vulnerability (CVE-2023-34038)****
VMware Horizon Server contains an information disclosure vulnerability. VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 5.3.
A malicious actor with network access may be able to access information relating to the internal network configuration.
To remediate CVE-2023-34038 apply the patches listed in the ‘Fixed Version’ column of the ‘Response Matrix’ below.
VMware would like to thank Matt Landers of OccamSec for reporting this issue to us.
Product
Version
Running On
CVE Identifier
CVSSv3
Severity
Fixed Version
Workarounds
Additional Documentation
VMware Horizon Server
2306
Any
N/A
N/A
N/A
Unaffected
N/A
N/A
VMware Horizon Server
2303
Any
CVE-2023-34037, CVE-2023-34038
5.3
moderate
2306
None
None
VMware Horizon Server
2212
Any
CVE-2023-34037, CVE-2023-34038
5.3
moderate
2212.1
None
None
VMware Horizon Server
2209, 2206
Any
CVE-2023-34037, CVE-2023-34038
5.3
moderate
2209.1
None
None
VMware Horizon Server
2111.x, 2106, 2103, 2012, 2006
Any
CVE-2023-34037, CVE-2023-34038
5.3
moderate
2111.2
None
None
****4. References****
****5. Change Log****
**2023-08-03: VMSA-2023-0017
**Initial security advisory.
****6. Contact****