Buffer overflow in Openprinting Cups
CVE-2023-4504
Due to failure in validating the length provided by an attacker-crafted PPD PostScript document, CUPS and libppd are susceptible to a heap-based buffer overflow and possibly code execution. This issue has been fixed in CUPS version 2.4.7, released in September of 2023.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (50.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Openprinting Cups — versions 0
- Openprinting Libppd — versions 2.0, 0
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 37, 38, 39
Weakness classification (CWE)
Public proof-of-concept exploits
References
- takeonme.org/cves/CVE-2023-4504.html (Exploit, technical-description, third-party-advisory)
- github.com/OpenPrinting/libppd/security/advisories/GHSA-4f65-6ph5-qwh6 (Exploit, vendor-advisory, Vendor Advisory)
- github.com/OpenPrinting/cups/security/advisories/GHSA-pf5r-86w9-678h (Exploit, vendor-advisory, Vendor Advisory)
- github.com/OpenPrinting/cups/releases/tag/v2.4.7 (release-notes, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Release Notes)
- lists.debian.org/debian-lts-announce/2023/09/msg00041.html (Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-4504?
- CVE-2023-4504 is a high-severity vulnerability in Openprinting Cups, classified under Heap-based Buffer Overflow. CVSS score: 7.0/10. Published 2023-09-21.
- How severe is CVE-2023-4504?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2023-4504 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.