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Fencer Vulns
low 2.5

CVE-2023-4016 json

Under some circumstances, this weakness allows a user who has access to run the “ps” utility on a machine, the ability to write almost unli…

published 2023-08-02 3 y ago modified 2026-10-14 25 d ago also EUVD-2023-53909

cvss
2.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits
0
none known

Summary

Under some circumstances, this weakness allows a user who has access to run the “ps” utility on a machine, the ability to write almost unlimited amounts of unfiltered data into the process heap.

Patch / fix

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • procps Debian 14, Debian 13 2:4.0.4-1

debian advisories DEBIAN-CVE-2023-4016

  • procps Ubuntu 20.04 LTS 2:3.3.16-1ubuntu2.4
  • procps Ubuntu 22.04 LTS 2:3.3.17-6ubuntu2.1
  • procps Ubuntu Pro 16.04 LTS 2:3.3.10-4ubuntu2.5+esm1
  • procps Ubuntu Pro 18.04 LTS 2:3.3.12-3ubuntu1.2+esm1

ubuntu advisories UBUNTU-CVE-2023-4016

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • procps-ng RHEL 8 3.3.15-14.el8
  • procps-ng-i18n RHEL 8 3.3.15-14.el8
  • procps-ng RHEL 9 3.3.17-13.el9
  • procps-ng-i18n RHEL 9 3.3.17-13.el9

red hat advisories RHSA-2023:7187RHSA-2023:6705

  • procps Linux Micro 6.0 3.3.17-5.1
  • procps SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +18 more 3.3.17-150000.7.42.1
  • procps SLE Module for Basesystem 15 SP5, SLE Module for Basesystem 15 SP4, SLE Micro 5.4 +9 more 3.3.15-150000.7.34.1
  • procps SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 3.3.9-11.27.1
  • procps SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 3.3.9-11.33.1

suse advisories SUSE-SU-2025:20180-1SUSE-SU-2025:0741-1SUSE-SU-2025:0725-1SUSE-SU-2023:3472-1SUSE-SU-2023:3471-1

  • procps-ng AlmaLinux 8 3.3.15-14.el8
  • procps-ng-i18n AlmaLinux 8 3.3.15-14.el8
  • procps-ng AlmaLinux 9 3.3.17-13.el9
  • procps-ng-i18n AlmaLinux 9 3.3.17-13.el9

almalinux advisories ALSA-2023:7187ALSA-2023:6705

  • procps-ng Rocky Linux 8 3.3.15-14.el8

rocky linux advisories RLSA-2023:7187

  • procps Alpine 3.15 3.3.17-r1
  • procps Alpine 3.16 3.3.17-r2
  • procps Alpine 3.17 3.3.17-r3
  • procps-ng Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 4.0.4-r0

alpine advisories ALPINE-CVE-2023-4016

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-4016 updated cvss 3.3

procps: ps buffer overflow

  • Red Hat Enterprise Linux 6 procps Red Hat Enterprise Linux 7 procps-ng, procps-ng-i18n
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 8) procps-ng-devel 3.3.15-14.el8, procps-ng-debuginfo 3.3.15-14.el8, procps-ng-debugsource 3.3.15-14.el8
    fixed: vendor fix RHSA-2023:7187
  • Red Hat CodeReady Linux Builder (v. 9) procps-ng-devel 3.3.17-13.el9, procps-ng-debuginfo 3.3.17-13.el9, procps-ng-debugsource 3.3.17-13.el9
    fixed: vendor fix RHSA-2023:6705
  • Red Hat Enterprise Linux BaseOS (v. 8) procps-ng 3.3.15-14.el8, procps-ng-i18n 3.3.15-14.el8
    fixed: vendor fix RHSA-2023:7187
  • Red Hat Enterprise Linux BaseOS (v. 9) procps-ng 3.3.17-13.el9, procps-ng-i18n 3.3.17-13.el9
    fixed: vendor fix RHSA-2023:6705
  • Red Hat OpenShift Container Platform 4 procps-ng
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-348-10 updated cvss 2.5

Siemens SIMATIC S7-1500

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5
    affected: fixed in V3.1.5, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected products

  • Linux Linux Kernal
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.