UBUNTU-CVE-2023-36810

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    UBUNTU-CVE-2023-36810

    Published: 30 Jun 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-36810
    Aliases:
    USN-6280-1

    Summary:

    Details: pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. An attacker who uses this vulnerability can craft a PDF which leads to unexpected long runtime. This quadratic runtime blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. This issue has been addressed in PR 808 and versions from 1.27.9 include this fix. Users are advised to upgrade. There are no known workarounds for this vulnerability.

    References: https://ubuntu.com/security/CVE-2023-36810, https://github.com/py-pdf/pypdf/issues/582, https://github.com/py-pdf/pypdf/security/advisories/GHSA-jrm6-h9cq-8gqw, https://github.com/py-pdf/pypdf/pull/808, https://ubuntu.com/security/notices/USN-6280-1, https://www.cve.org/CVERecord?id=CVE-2023-36810

    Affected packages

    Package

    Name: pypdf2

    Purl: pkg:deb/ubuntu/[email protected]~esm2?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.25.1-1ubuntu0.1~esm2

    Affected versions

    1.23+git20141008-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2023-36810 | CVE-DB