CVE intelligence and bounded remediation

CVE-2023-4042 — A flaw was found in ghostscript

Medium CVSS 5.5

A flaw was found in ghostscript. The fix for CVE-2020-16305 in ghostscript was not included in RHSA-2021:1852-06 advisory as it was claimed to be. This issue only affects the ghostscript package as shipped with Red Hat Enterprise Linux 8.

Severity
Medium
CVSS
5.5 (3.1)
Published
2023-08-23
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-125, CWE-787

Affected products

  • artifex / ghostscript
  • redhat / codeready_linux_builder / 8.0
  • redhat / codeready_linux_builder_for_arm64 / 8.0_aarch64
  • redhat / codeready_linux_builder_for_ibm_z_systems / 8.0_s390x
  • redhat / codeready_linux_builder_for_power_little_endian / 8.0_ppc64le
  • redhat / enterprise_linux / 8.0

Showing 6 representative product identities from 9 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Buffer bounds, memory safety, and memory corruption

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Check exposure

  • Identify affected native-code versions, build flags, architectures, parsers, codecs, drivers, and input paths in all shipped artifacts.
  • Determine whether untrusted data reaches the affected routine and the process privilege, sandbox, and network exposure.
  • Confirm statically linked, vendored, firmware, and platform-provided copies, not only package-manager records.

Remediate safely

  • Apply the maintained upstream correction or replace the affected component, then rebuild every dependent artifact from clean inputs.
  • Adopt bounds-checked interfaces, validated sizes and integer conversions, clear ownership, and memory-safe components where practical.
  • Enable supported compiler and runtime hardening and add sanitized tests and fuzz regression seeds derived from non-weaponized fixtures.

Authoritative sources

Complete CVE record and remediation plan

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