CVE-2018-18020

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.

CVSS v3.0

3.3 LOWCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

1.21% chance of exploitation in the next 30 days, 66th percentile

Published

2018-10-06

Updated

2024-08-05

Proof-of-concept exploits (1)

• qpdf/qpdf/issues/243

References

• CVE Record
• NVD entry

Related

• CVE-2018-9918
• CVE-2021-25786
• CVE-2024-24246
• CVE-2018-18014
• CVE-2018-18023
• CVE-2018-18013