Medium severity · published Nov 20, 2020
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
4.7
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Aix · Ibm
7.1.0; 7.1.5; 7.2.0; 7.2.3; 7.2.4; 7.2.5 · source: NVD
CC
Communications Cloud Native Core Binding Support Function · Oracle
22.1.3 · source: NVD
CC
Communications Cloud Native Core Network Exposure Function · Oracle
22.1.1 · source: NVD
CC
Communications Cloud Native Core Policy · Oracle
22.2.0 · source: NVD
FE
Fedora · Fedoraproject
32; 33 · source: NVD
VI
Vios · Ibm
3.1.0; 3.1.1; 3.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-4788
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-4788
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
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/
Patch
https://www.ibm.com/support/pages/node/6370729
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