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Debian LTS Advisory DLA-3548-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
August 29, 2023                               https://wiki.debian.org/LTS
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Package        : qpdf
Version        : 8.4.0-2+deb10u1
CVE ID         : CVE-2018-18020 CVE-2021-25786 CVE-2021-36978


Several issues have been found in qpdf, a package with tools for 
transforming and inspecting PDF files.
Crafted files may enable remote attackers to execute arbitrary code or 
create recursive calls for a long time, which causes a denial of service.
Further a heap-based buffer overflow might occur when a certain downstream 
write fails.


For Debian 10 buster, these problems have been fixed in version
8.4.0-2+deb10u1.

We recommend that you upgrade your qpdf packages.

For the detailed security status of qpdf please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/qpdf

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS