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CVE-2023-4504

21
FAUCET Score

CVE-2023-4504 describes a heap-based buffer overflow vulnerability in CUPS and libppd, stemming from a failure to validate the length of attacker-crafted PPD PostScript documents. This flaw affects products like Debian, Fedora, and OpenPrinting, and has been patched in CUPS version 2.4.7. With a CVSS score of 7.0 (HIGH), the vulnerability requires local access and user interaction (e.g., opening a malicious document) but could lead to high impact in confidentiality, integrity, and availability, including potential code execution. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.4.7CPE matchmatch criteria
cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:openprinting:libppd:2.0:rc2:*:*:*:linux:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
38CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
39CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
48.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 43rd percentile among its peer group of 386 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.0 Bluesky, 0.1 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (15)

microsoftpatch availablevia msrc
Product: cbl2 cups 2.3.3op2-9 on CBL Mariner 2.0Fixed in: 2.3.3op2-7
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 2.3.3op2-7
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 2.3.3op2-7
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 2.4.10-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 2.4.10-1
microsoftpatch availablevia msrc
Product: 20071-17084Fixed in: 2.4.10-1
microsoftpatch availablevia msrc
Product: 17722-17084Fixed in: 2.4.10-1
microsoftpatch availablevia msrc
Product: 18159-16823Fixed in: 2.3.3op2-7
microsoftpatch availablevia msrc
Product: 19950-17086Fixed in: 2.3.3op2-7
microsoftpatch availablevia msrc
Product: azl3 cups 2.3.3op2-6 on Azure Linux 3.0Fixed in: 2.4.10-1
microsoftpatch availablevia msrc
Product: azl3 cups 2.4.10-1 on Azure Linux 3.0Fixed in: 2.4.10-1
microsoftpatch availablevia msrc
Product: cbl2 cups 2.3.3op2-7 on CBL Mariner 2.0Fixed in: 2.3.3op2-7
github_advisoryvendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: cups
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: cups

Vendor Advisories (3)

microsoft2024-Sep/CVE-2023-4504

CVE-2023-4504

Sep 10, 2024
redhatCVE-2023-4504Moderate

libppd: Postscript Parsing Heap Overflow

Sep 20, 2023
microsoft2023-Sep/CVE-2023-4504Important

OpenPrinting CUPS/libppd Postscript Parsing Heap Overflow

Sep 12, 2023

References

seclists.org / fulldisclosure/2024/Sep/33
github.com / OpenPrinting/cups/releases/tag/v2.4.7
Release Notes
github.com / OpenPrinting/cups/security/advisories/GHSA-pf5r-86w9-678h
ExploitVendor Advisory
github.com / OpenPrinting/libppd/security/advisories/GHSA-4f65-6ph5-qwh6
ExploitVendor Advisory
lists.debian.org / debian-lts-announce/2023/09/msg00041.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/5WHEJIYMMAIXU2EC35MGTB5LGGO2FFJE
Mailing ListRelease Notes
lists.fedoraproject.org / archives/list/[email protected]/message/5WVS4I7JG3LISFPKTM6ADKJXXEPEEWBQ
Mailing ListRelease Notes
lists.fedoraproject.org / archives/list/[email protected]/message/AMYDKIE4PSJDEMC5OWNFCDMHFGLJ57XG
Mailing ListRelease Notes
lists.fedoraproject.org / archives/list/[email protected]/message/PXPVADB56NMLJWG4IZ3OZBNJ2ZOLPQJ6
Third Party Advisory
lists.fedoraproject.org / archives/list/[email protected]/message/T2GSPQAFK2Z6L57TRXEKZDF42K2EVBH7
Mailing ListRelease Notes
takeonme.org / cves/CVE-2023-4504.html
Exploit