Information disclosure in IBM VIOS



Published: 2020-11-20
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-4788
CWE ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
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IBM VIOS
Server applications / Application servers

Vendor IBM Corporation

Security Advisory

This security advisory describes one low risk vulnerability.

1) Information disclosure

Risk: Low

CVSSv3: 4.8 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-4788

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists in IBM Power9 processors due to unspecified error. A local user can obtain sensitive information from the data in the L1 cache under extenuating circumstances.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

IBM VIOS: 3.1.0, 3.1.1, 3.1.2

CPE External links

http://aix.software.ibm.com/aix/efixes/security/power9_advisory.asc

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.