An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via crafted .pdf file to Pl_ASCII85Decoder::write parameter in libqpdf.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via     crafted .pdf file to Pl_ASCII85Decoder::write parameter in libqpdf. (CVE-2021-25786)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of qpdf installed on the remote host is prior to 5.0.1-4. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2409 advisory.

    2024-01-17: CVE-2021-36978 was added to this advisory.

    An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via     crafted .pdf file to Pl_ASCII85Decoder::write parameter in libqpdf. (CVE-2021-25786)

    QPDF 9.x through 9.1.1 and 10.x through 10.0.4 has a heap-based buffer overflow in     Pl_ASCII85Decoder::write (called from Pl_AES_PDF::flush and Pl_AES_PDF::finish) when a certain downstream     write fails. (CVE-2021-36978)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3548 advisory.

    - -------------------------------------------------------------------------     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
    - -------------------------------------------------------------------------

    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/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

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
223750	Linux Distros Unpatched Vulnerability : CVE-2021-25786	Nessus	Misc.	medium
187822	Amazon Linux 2 : qpdf (ALAS-2024-2409)	Nessus	Amazon Linux Local Security Checks	medium
180269	Debian dla-3548 : libqpdf-dev - security update	Nessus	Debian Local Security Checks	medium

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CVE-2021-25786

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