Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openprinting | Cpdb-Libs | >= 1.0, < 2.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2023/06/14/7ExploitMailing ListThird Party Advisory
- https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904cProduct
- https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904cProduct
- https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904cProduct
- https://github.com/OpenPrinting/cpdb-libs/commit/f181bd1f14757c2ae0f17cc76dc2042Patch
- https://github.com/OpenPrinting/cpdb-libs/security/advisories/GHSA-25j7-9gfc-f46ExploitVendor Advisory
- http://www.openwall.com/lists/oss-security/2023/06/14/7ExploitMailing ListThird Party Advisory
- https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904cProduct
- https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904cProduct
- https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904cProduct
- https://github.com/OpenPrinting/cpdb-libs/commit/f181bd1f14757c2ae0f17cc76dc2042Patch
- https://github.com/OpenPrinting/cpdb-libs/security/advisories/GHSA-25j7-9gfc-f46ExploitVendor Advisory
FAQ
What is CVE-2023-34095?
CVE-2023-34095 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...
How severe is CVE-2023-34095?
CVE-2023-34095 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2023-34095?
Check the references section above for vendor advisories and patch information. Affected products include: Openprinting Cpdb-Libs.