Out-of-bounds Read in Artifex Ghostscript
CVE-2023-4042
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (26.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Artifex Ghostscript
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:9.27-11.el8
- Red Hat Enterprise Linux 9
- Red Hat Codeready Linux Builder — versions 8.0
- Red Hat Codeready Linux Builder For Arm64 — versions 8.0_aarch64
- Red Hat Codeready Linux Builder For IBM Z Systems — versions 8.0_s390x
- Red Hat Codeready Linux Builder For Power Little Endian — versions 8.0_ppc64le
- Red Hat Enterprise Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2023:7053 (vendor-advisory, Third Party Advisory)
- access.redhat.com/security/cve/CVE-2023-4042 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2023-4042?
- CVE-2023-4042 is a medium-severity vulnerability in Artifex Ghostscript, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2023-08-23.
- How severe is CVE-2023-4042?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-4042 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.