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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade cpdb-libs | Jul 30, 2024 | Jun 14, 2023 |
| Ubuntu | — | Upgrade libcpdb-frontend2Upgrade cpdb-libs-toolsUpgrade libcpdb-libs-toolsUpgrade libcpdb-libs-frontend1Upgrade libcpdb-libs-common1Upgrade libcpdb2 | Jul 6, 2023 | Jun 14, 2023 |
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