CVE-2021-21974
Last modified
CVE-2021-21974 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 45.06% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vmware | Cloud Foundation | >= 3.0, < 3.10.1.2 |
| Vmware | Cloud Foundation | >= 4.0, < 4.2 |
| Vmware | Esxi | 6.5 |
| Vmware | Esxi | 6.7 |
| Vmware | Esxi | 7.0.0 |
References
- http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-250/Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/162957/VMware-ESXi-OpenSLP-Heap-Overflow.htmlExploit, Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-21-250/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
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