🛡️ CVE-2023-34095
🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-121 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

cpdb-libs provides frontend and backend libraries for the Common Printing Dialog Backends (CPDB) project. In versions 1.0 through 2.0b4, cpdb-libs is vulnerable to buffer overflows via improper use of `scanf(3)`. cpdb-libs uses the `fscanf()` and `scanf()` functions to parse command lines and configuration files, dropping the read string components into fixed-length buffers, but does not limit the length of the strings to be read by `fscanf()` and `scanf()` causing buffer overflows when a string is longer than 1023 characters. A patch for this issue is available at commit f181bd1f14757c2ae0f17cc76dc20421a40f30b7. As all buffers have a length of 1024 characters, the patch limits the maximum string length to be read to 1023 by replacing all occurrences of `%s` with `%1023s` in all calls of the `fscanf()` and `scanf()` functions.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-121
Public Exploit ⚠️ Yes
Source NVD
Published 2023-06-14
Updated 2026-06-08
Modified 2025-04-10

Affected Packages

Software From version Fixed in
cpdb-libs — —

References

Exploit, Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2023/06/14/7
Exploit, Mailing List, Third Party Advisory http://www.openwall.com/lists/oss-security/2023/06/14/7

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