CVE-2021-21974
8.8
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
OpenSLP as used in ESXi (7.0 before ESXi70U1c-17325551, 6.7 before ESXi670-202102401-SG, 6.5 before ESXi650-202102101-SG) has a heap-overflow vulnerability. A malicious actor residing within the same network segment as ESXi who has access to port 427 may be able to trigger the heap-overflow issue in OpenSLP service resulting in remote code execution.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | VMware ESXi | 7.0 before ESXi70U1c-17325551 | affected |
| n/a | VMware ESXi | 6.7 before ESXi670-202102401-SG | affected |
| n/a | VMware ESXi | 6.5 before ESXi650-202102101-SG | affected |
| n/a | VMware Cloud Foundation | 4.x before 4.2 and 3.x | affected |
Weaknesses
- OpenSLP heap-overflow vulnerability
ADP Enrichment
CVE Program Container
Additional References
- https://www.vmware.com/security/advisories/VMSA-2021-0002.html
- https://www.zerodayinitiative.com/advisories/ZDI-21-250/
- http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.html
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: total
References
- https://www.vmware.com/security/advisories/VMSA-2021-0002.html
- https://www.zerodayinitiative.com/advisories/ZDI-21-250/
- http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.html
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