CVE-2023-34095 — cpdb-libs provides frontend and backend libraries for the Common Printing Dialog

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 comm

01What is this vulnerability?

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…

02Affected products

Vendor	Product	Versions
OpenPrinting	cpdb	libs — >= 1.0, <= 2.0b4

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-06-14T16:58:50.887Z
• Last modified: 2025-02-13T16:55:16.869Z

09References

• github.com — https://github.com/OpenPrinting/cpdb-libs/security/advisories/GHSA-25j7-9gfc-f46…
• github.com — https://github.com/OpenPrinting/cpdb-libs/commit/f181bd1f14757c2ae0f17cc76dc2042…
• github.com — https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904c…
• github.com — https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904c…
• github.com — https://github.com/OpenPrinting/cpdb-libs/blob/85555fba64d34f53a2fce099b0488904c…
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/06/14/7