PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In versions prior to 1.27.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 if the code attempts to get the content stream. The reason is that the last while-loop in `ContentStream._readInlineImage` only terminates when it finds the `EI` token, but never actually checks if the stream has already ended. This issue has been resolved in version `1.27.5`. Users unable to upgrade should validate and PDFs prior to iterating over their content stream.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the
    pages of PDF files. In versions prior to 1.27.5 an attacker who uses this vulnerability can craft a PDF
    which leads to an infinite loop if the PyPDF2 if the code attempts to get the content stream. The reason
    is that the last while-loop in `ContentStream._readInlineImage` only terminates when it finds the `EI`
    token, but never actually checks if the stream has already ended. This issue has been resolved in version
    `1.27.5`. Users unable to upgrade should validate and PDFs prior to iterating over their content stream.
    (CVE-2022-24859)

The remote openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2024:0366-1 advisory.

    - CVE-2022-24859: Fixed infinite loop vulnerability (boo#1198588)

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

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

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-6176-1 advisory.

    It was discovered that PyPDF2 incorrectly handled certain PDF files. If a

    user or automated system were tricked into processing a specially crafted file, an attacker could possibly     use this issue to consume system resources, resulting in a denial of service.

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

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the dla-3451 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3451-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Markus Koschany     June 09, 2023                                 https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : pypdf2     Version        : 1.26.0-2+deb10u1     CVE ID         : CVE-2022-24859     Debian Bug     : 1009879

    Sebastian Krause discovered that manipulated inline images can force PyPDF2,     a pure Python PDF library, into an infinite loop, if a maliciously crafted PDF     file is processed.

    For Debian 10 buster, this problem has been fixed in version     1.26.0-2+deb10u1.

    We recommend that you upgrade your pypdf2 packages.

    For the detailed security status of pypdf2 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/pypdf2

    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     Attachment:
    signature.asc     Description: This is a digitally signed message part

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

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

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-3039 advisory.

    Sebastian Krause discovered that manipulated inline images can force PyPDF2, a pure Python PDF library,     into an infinite loop, if a maliciously crafted PDF file is processed. For Debian 9 stretch, this problem     has been fixed in version 1.26.0-2+deb9u1. We recommend that you upgrade your pypdf2 packages. For the     detailed security status of pypdf2 please refer to its security tracker page at: https://security-     tracker.debian.org/tracker/pypdf2 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 this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
420436	SCA: security update for PyPDF2 (GHSA-xcjx-m2pj-8g79)	Tenable Cloud Security	SCA Checks	medium
420436	SCA: security update for PyPDF2 (GHSA-xcjx-m2pj-8g79)	Tenable Self-Hosted Container Security	SCA Checks	medium
210889	openSUSE 15 Security Update : python-PyPDF2 (openSUSE-SU-2024:0366-1)	Nessus	SuSE Local Security Checks	medium
177426	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS : PyPDF2 vulnerability (USN-6176-1)	Nessus	Ubuntu Local Security Checks	medium
177106	Debian dla-3451 : python-pypdf2 - security update	Nessus	Debian Local Security Checks	medium
161806	Debian DLA-3039-1 : pypdf2 - LTS security update	Nessus	Debian Local Security Checks	medium

Detections

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CVE-2022-24859

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medium