Remote code execution in VMware ESXi and Horizon DaaS
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-5544 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | Vulnerability #1 is being exploited in the wild. |
| Vulnerable software Subscribe |
VMware ESXi Operating systems & Components / Operating system Horizon DaaS Client/Desktop applications / Other client software |
| Vendor | VMware, Inc |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU23432
Risk: High
CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2019-5544
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in OpenSLP. A remote attacker with network access to port 427 on an ESXi host or on any Horizon DaaS management appliance can overwrite the heap of the OpenSLP service, trigger out-of-bounds write and execute arbitrary code on the target system.
Note: This vulnerability affects Horizon DaaS 8.x
MitigationInstall updates from vendor's website.
Vulnerable software versionsVMware ESXi: 6.0 - 6.7
Horizon DaaS: All versions
External linkshttp://www.vmware.com/security/advisories/VMSA-2019-0022.html
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?
Yes. This vulnerability is being exploited in the wild.
