CVE-2020-4788

Description

IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.

4.7

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.10%

Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory ibmcloud.com Vendor Advisory ibm.com

Affected: IBM VIOS

Affected: IBM AIX

References

Link	Tags
https://www.ibm.com/support/pages/node/6370729	patch vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296	vdb entry vendor advisory
http://www.openwall.com/lists/oss-security/2020/11/20/3	patch mailing list third party advisory
http://www.openwall.com/lists/oss-security/2020/11/23/1	third party advisory mailing list
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/	vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/	vendor advisory
https://www.oracle.com/security-alerts/cpujul2022.html	third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-4788?: CVE-2020-4788 has been scored as a medium severity vulnerability.
How to fix CVE-2020-4788?: To fix CVE-2020-4788, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-4788 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-4788 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-4788?: CVE-2020-4788 affects IBM VIOS, IBM AIX.

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