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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
3.3 LOW
LOCAL
LOW
NONE
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 29%
VendorProductVersion
qpdf_projectqpdf
8.2.1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qpdf
bullseye
10.1.0-1
fixed
stretch
no-dsa
jessie
no-dsa
bookworm
11.3.0-1+deb12u1
fixed
sid
11.9.1-1
fixed
trixie
11.9.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qpdf
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
ignored
focal
not-affected
eoan
ignored
disco
ignored
cosmic
ignored
bionic
Fixed 8.0.2-3ubuntu0.1
released
xenial
Fixed 8.0.2-3~16.04.1+esm1
released
trusty
dne
Common Weakness Enumeration
References
https://github.com/qpdf/qpdf/issues/243
https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html
https://github.com/qpdf/qpdf/issues/243
https://lists.debian.org/debian-lts-announce/2023/08/msg00037.html