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TI-2020-04058 Aliases CVE-2020-4788GHSA-fv43-627p-jvmr

IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain…

Priority LOW 22Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Partial Red Hat: 2 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.00392 33rd percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMVIOS3.1—No fix listedCNA
IBMAIX7.1; 7.2—No fix listedCNA
  • VIOS VendorIBM Affected 3.1 Fixed in — No fix listed CNA
  • AIX VendorIBM Affected 7.1; 7.2 Fixed in — No fix listed CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:a:ibm:vios:3.1.0:*:*:*:*:*:*:*3.1.0VulnerableIBM
cpe:2.3:a:ibm:vios:3.1.1:*:*:*:*:*:*:*3.1.1VulnerableIBM
cpe:2.3:a:ibm:vios:3.1.2:*:*:*:*:*:*:*3.1.2VulnerableIBM
cpe:2.3:o:ibm:aix:7.1.0:*:*:*:*:*:*:*7.1.0VulnerableIBM
cpe:2.3:o:ibm:aix:7.1.5:*:*:*:*:*:*:*7.1.5VulnerableIBM
cpe:2.3:o:ibm:aix:7.2.0:*:*:*:*:*:*:*7.2.0VulnerableIBM
cpe:2.3:o:ibm:aix:7.2.3:*:*:*:*:*:*:*7.2.3VulnerableIBM
cpe:2.3:o:ibm:aix:7.2.4:*:*:*:*:*:*:*7.2.4VulnerableIBM
cpe:2.3:o:ibm:aix:7.2.5:*:*:*:*:*:*:*7.2.5VulnerableIBM
cpe:2.3:o:ibm:power9:-:*:*:*:*:*:*:*not specified by NVDRunning onIBM
  • cpe:2.3:a:ibm:vios:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·IBM
  • cpe:2.3:a:ibm:vios:3.1.1:*:*:*:*:*:*:* Versions 3.1.1 Vulnerable ·IBM
  • cpe:2.3:a:ibm:vios:3.1.2:*:*:*:*:*:*:* Versions 3.1.2 Vulnerable ·IBM
  • cpe:2.3:o:ibm:aix:7.1.0:*:*:*:*:*:*:* Versions 7.1.0 Vulnerable ·IBM
  • cpe:2.3:o:ibm:aix:7.1.5:*:*:*:*:*:*:* Versions 7.1.5 Vulnerable ·IBM
  • cpe:2.3:o:ibm:aix:7.2.0:*:*:*:*:*:*:* Versions 7.2.0 Vulnerable ·IBM
  • cpe:2.3:o:ibm:aix:7.2.3:*:*:*:*:*:*:* Versions 7.2.3 Vulnerable ·IBM
  • cpe:2.3:o:ibm:aix:7.2.4:*:*:*:*:*:*:* Versions 7.2.4 Vulnerable ·IBM
  • cpe:2.3:o:ibm:aix:7.2.5:*:*:*:*:*:*:* Versions 7.2.5 Vulnerable ·IBM
  • cpe:2.3:o:ibm:power9:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*22.1.3VulnerableOracle
cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*22.1.1VulnerableOracle
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*22.2.0VulnerableOracle
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:* Versions 22.1.3 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:* Versions 22.1.1 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:* Versions 22.2.0 Vulnerable ·Oracle

Remediation

Red Hat 1 advisory

  • RHSA-2022:1988 Released 2022-05-10 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-372.9.1.el8, kernel-4.18.0-372.9.1.el8, kernel-abi-stablelists-4.18.0-372.9.1.el8 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-372.9.1.el8

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:1988
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2022:1988
Not affected: 5 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-4788
  2. 2026-10-03 Alias added: GHSA-fv43-627p-jvmr

References

Patch 3

Advisory 3

  • TI-2001-00767 Buffer overflow in login in various System V based operating systems allows remote… CVSS 2.0HIGH 10.0
  • TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
  • TI-2009-03523 Stack-based buffer overflow in libcsa.a (aka the calendar daemon library) in IBM AIX 5.x… CVSS 2.0HIGH 10.0
  • TI-1999-00045 Buffer overflow of rlogin program using TERM environmental variable. CVSS 2.0HIGH 10.0
  • TI-2001-00539 Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows… CVSS 2.0HIGH 10.0
  • TI-1999-00009 Inverse query buffer overflow in BIND 4.9 and BIND 8 Releases. CVSS 2.0HIGH 10.0
See all 544 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences