Vulnerability in IBM Aix
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- IBM Aix — versions 7.2.4, 7.1.0, 7.2
- IBM Power9
- IBM Vios — versions 3.1.1, 3.1.2, 3.1.0
- Oracle Communications Cloud Native Core Binding Support Function — versions 22.1.3
- Oracle Communications Cloud Native Core Network Exposure Function — versions 22.1.1
- Oracle Communications Cloud Native Core Policy — versions 22.2.0
- Fedoraproject Fedora — versions 32, 33
Public proof-of-concept exploits
References
- www.ibm.com/support/pages/node/6370729 (Patch, Vendor Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/189296 (VDB Entry, vdb-entry, Vendor Advisory)
- www.openwall.com/lists/oss-security/2020/11/20/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/11/23/1 (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.oracle.com/security-alerts/cpujul2022.html (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-4788?
- CVE-2020-4788 is a medium-severity vulnerability in IBM Aix. CVSS score: 4.7/10. Published 2020-11-20.
- How severe is CVE-2020-4788?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2020-4788 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.