Vulnerability Details : 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.
Products affected by CVE-2020-4788
- cpe:2.3:o:ibm:aix:7.1.5:*:*:*:*:*:*:*
- cpe:2.3:o:ibm:aix:7.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:ibm:aix:7.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:ibm:aix:7.2.3:*:*:*:*:*:*:*
- cpe:2.3:o:ibm:aix:7.2.4:*:*:*:*:*:*:*
- cpe:2.3:o:ibm:aix:7.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:ibm:vios:3.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:ibm:vios:3.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:ibm:vios:3.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-4788
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-4788
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:P/I:N/A:N |
3.4
|
2.9
|
NIST | |
|
5.1
|
MEDIUM | CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
1.4
|
3.6
|
IBM Corporation | |
|
4.7
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.0
|
3.6
|
NIST |
References for CVE-2020-4788
-
https://www.ibm.com/support/pages/node/6370729
Security Bulletin: IBM has released AIX and VIOS iFixes in response to a vulnerability in IBM POWER9 (CVE-2020-4788)Patch;Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2020/11/20/3
oss-security - CVE-2020-4788: Speculation on incompletely validated data on IBM Power9Mailing List;Patch;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/
[SECURITY] Fedora 33 Update: kernel-5.9.10-200.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/189296
IBM AIX and VIOS information disclosure CVE-2020-4788 Vulnerability ReportVDB Entry;Vendor Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/
[SECURITY] Fedora 32 Update: kernel-5.9.10-100.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpujul2022.html
Oracle Critical Patch Update Advisory - July 2022Patch;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2020/11/23/1
oss-security - Re: CVE-2020-4788: Speculation on incompletely validated data on IBM Power9Mailing List;Third Party Advisory
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