libqpdf21: In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls...
CVE-2018-18020 is fixed in 2 products on 1 platform, first by libqpdf21 8.0.2-3ubuntu0.1, released August 11, 2023. It is not reported as exploited. Patch Radar priority: Routine.
In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libqpdf21 · Ubuntu 18.04.6 LTS (bionic) | 8.0.2-3ubuntu0.1 | libqpdf21 8.0.2-3ubuntu0.1 | Aug 11, 2023 |
| qpdf · Ubuntu 18.04.6 LTS (bionic) | 8.0.2-3ubuntu0.1 | qpdf 8.0.2-3ubuntu0.1 | Aug 11, 2023 |
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