CVE-2020-4788

MEDIUM

IBM VIOS 3.1 and AIX 7.1-7.2 - Information Disclosure via L1 Cache

Title source: llm
STIX 2.1

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.

References (7)

Core 7
Core References
Patch, Vendor Advisory x_refsource_confirm
https://www.ibm.com/support/pages/node/6370729
VDB Entry, Vendor Advisory vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2020/11/20/3
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2020/11/23/1
Patch, Third Party Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpujul2022.html

Scores

CVSS v3 4.7
EPSS 0.0039
EPSS Percentile 31.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

Status published
Products (14)
fedoraproject/fedora 32
fedoraproject/fedora 33
ibm/aix 7.1.0
ibm/aix 7.1.5
ibm/aix 7.2.0
ibm/aix 7.2.3
ibm/aix 7.2.4
ibm/aix 7.2.5
ibm/vios 3.1.0
ibm/vios 3.1.1
... and 4 more
Published Nov 20, 2020
Tracked Since Feb 18, 2026