Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2020-4788

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.7, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 7 products from ibm, from ibm, from ibm and 4 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2020-11-20T04:15:11.063

Last Modified

2024-11-21T05:33:15.377

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.7 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.4

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ibm	vios	3.1.0	Yes
Application	ibm	vios	3.1.1	Yes
Application	ibm	vios	3.1.2	Yes
Operating System	ibm	aix	7.1.0	Yes
Operating System	ibm	aix	7.1.5	Yes
Operating System	ibm	aix	7.2.0	Yes
Operating System	ibm	aix	7.2.3	Yes
Operating System	ibm	aix	7.2.4	Yes
Operating System	ibm	aix	7.2.5	Yes
Operating System	ibm	power9	-	No
Operating System	fedoraproject	fedora	32	Yes
Operating System	fedoraproject	fedora	33	Yes
Application	oracle	communications_cloud_native_core_binding_support_function	22.1.3	Yes
Application	oracle	communications_cloud_native_core_network_exposure_function	22.1.1	Yes
Application	oracle	communications_cloud_native_core_policy	22.2.0	Yes

References

http://www.openwall.com/lists/oss-security/2020/11/20/3 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/11/23/1 Mailing List, Third Party Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296 VDB Entry, Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/ ([email protected])
https://www.ibm.com/support/pages/node/6370729 Patch, Vendor Advisory ([email protected])
https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/11/20/3 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2020/11/23/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296 VDB Entry, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.ibm.com/support/pages/node/6370729 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For ibm's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.