CVE-2020-4788

MediumCVSS 4.7/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected software

Vendor	Product	Versions
IBM	VIOS	3.1
IBM	AIX	7.1; 7.2

References

http://www.openwall.com/lists/oss-security/2020/11/20/3Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/23/1Mailing List, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296VDB Entry, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/
https://www.ibm.com/support/pages/node/6370729Patch, Vendor Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/20/3Mailing List, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/23/1Mailing List, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296VDB Entry, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/
https://www.ibm.com/support/pages/node/6370729Patch, Vendor Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory

Timeline

Published: Nov 20, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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