UBUNTU-CVE-2021-36978

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    UBUNTU-CVE-2021-36978

    Published: 20 Jul 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-36978

    Summary:

    Details: 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.

    References: https://ubuntu.com/security/CVE-2021-36978, https://github.com/google/oss-fuzz-vulns/blob/main/vulns/qpdf/OSV-2020-2245.yaml, https://ubuntu.com/security/notices/USN-5026-1, https://ubuntu.com/security/notices/USN-5026-2, https://www.cve.org/CVERecord?id=CVE-2021-36978

    Affected packages

    Package

    Name: qpdf

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1+esm1?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -8.0.2-3~16.04.1+esm1

    Affected versions

    5.1.3-2
    5.1.3-3

    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-2021-36978 | CVE-DB