CVE-2021-20505
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…
Does this matter?
Lower severity and a low EPSS score (0.55%). Track it; it rarely justifies an emergency change on its own.
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
- CVSS 3.1
- 4.4 MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Affected
- ibm/powervm hypervisor
- Source
- psirt@us.ibm.com
References
- https://exchange.xforce.ibmcloud.com/vulnerabilities/198232VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6475619Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/198232VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6475619Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.