CVE-2023-4504— OpenPrinting CUPS/libppd Postscript Parsing Heap Overflow
Quick assessment
Affected
OpenPrinting CUPS
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
OpenPrinting CUPS是OpenPrinting公司的一个适用于 Linux® 和其他类 Unix® 操作系统的基于标准的开源打印系统。 OpenPrinting CUPS存在安全漏洞，该漏洞源于无法验证攻击者制作的CUPS文档长度，造成缓冲区溢出和代码执行。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-4504
Vulnerability Information
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Vulnerability Title
OpenPrinting CUPS/libppd Postscript Parsing Heap Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
OpenPrinting CUPS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenPrinting CUPS是OpenPrinting公司的一个适用于 Linux® 和其他类 Unix® 操作系统的基于标准的开源打印系统。 OpenPrinting CUPS存在安全漏洞，该漏洞源于无法验证攻击者制作的CUPS文档长度，造成缓冲区溢出和代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| OpenPrinting | CUPS | 0 ~ 2.4.6 | - |
|
| OpenPrinting | libppd | 0 ~ d09348b | - |
|
II. Public POCs for CVE-2023-4504
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Heap-based buffer overflow example based on CVE-2023-4504 | https://github.com/djjohnson565/CUPS-Exploit | POC Details |
AI-Generated POC
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Vendor Advisories for CVE-2023-4504 (2)
Mailing List Discussions for CVE-2023-4504 (6)
Other References for CVE-2023-4504 (2)
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https://github.com/OpenPrinting/cups/releases/tag/v2.4.7 release-notes
IV. Related Vulnerabilities
Same product: CUPS
-
CVE-2026-41079
OpenPrinting CUPS: Heap out-of-bounds read in SNMP supply-le -
CVE-2026-39316
CUPS has a use-after-free in `cupsdDeleteTemporaryPrinters` -
CVE-2026-39314
CUPS has an integer underflow in `_ppdCreateFromIPP` causes -
CVE-2026-34980
OpenPrinting CUPS: Shared PostScript queue lets anonymous Pr -
CVE-2026-34979
OpenPrinting CUPS: Heap overflow in `get_options()`
Same vendor: OpenPrinting
-
CVE-2026-41079
OpenPrinting CUPS: Heap out-of-bounds read in SNMP supply-le -
CVE-2026-39316
CUPS has a use-after-free in `cupsdDeleteTemporaryPrinters` -
CVE-2026-39314
CUPS has an integer underflow in `_ppdCreateFromIPP` causes -
CVE-2026-34980
OpenPrinting CUPS: Shared PostScript queue lets anonymous Pr -
CVE-2026-34979
OpenPrinting CUPS: Heap overflow in `get_options()`
Same weakness: CWE-122
-
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Capstone SH disassembler `set_reg_n` heap buffer overflow vi -
CVE-2026-70654
libvips: A well-crafted PPM image processed via a custom sou
V. Comments for CVE-2023-4504
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