CVE-2020-4788

moderate-risk

Published 2020-11-20

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.

Do I need to act?

0.20% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.7/10 Medium

LOCAL / HIGH complexity

Affected Products (14)

Vios

Aix

Fedora

Communications Cloud Native Core Binding Support Function

Communications Cloud Native Core Network Exposure Function

Communications Cloud Native Core Policy

Affected Vendors

Ibm Oracle Fedoraproject

References (14)

Mailing List http://www.openwall.com/lists/oss-security/2020/11/20/3

Mailing List http://www.openwall.com/lists/oss-security/2020/11/23/1

VDB Entry https://exchange.xforce.ibmcloud.com/vulnerabilities/189296

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Patch https://www.ibm.com/support/pages/node/6370729

Patch https://www.oracle.com/security-alerts/cpujul2022.html

Mailing List http://www.openwall.com/lists/oss-security/2020/11/20/3

Mailing List http://www.openwall.com/lists/oss-security/2020/11/23/1

VDB Entry https://exchange.xforce.ibmcloud.com/vulnerabilities/189296

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Patch https://www.ibm.com/support/pages/node/6370729

Patch https://www.oracle.com/security-alerts/cpujul2022.html

/ 100

moderate-risk

Severity 12/34 · Low

Exploitability 1/34 · Minimal

Exposure 18/34 · Moderate