Vulnerability · Published Jul 29, 2021 · Assigned by ibm
CVE-2021-20505
Medium 4.4
In plain English
A medium-severity security flaw in PowerVM Hypervisor from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS 3.0)4.4Medium
Exploit odds (30 days)0.5%top 54.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The PowerVM Logical Partition Mobility(LPM) (PowerVM Hypervisor FW920, FW930, FW940, and FW950) encryption key exchange protocol can be compromised. If an attacker has the ability to capture encrypted LPM network traffic and is able to gain service access to the FSP they can use this information to perform a series of PowerVM service procedures to decrypt the captured migration traffic IBM X-Force ID: 198232
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | PowerVM Hypervisor | FW920FW930FW940FW950 |
References
- https://www.ibm.com/support/pages/node/6475619 x_refsource_CONFIRM
- ibm-powervm-cve202120505-info-disc (198232) vdb-entry, x_refsource_XF