UBUNTU-CVE-2021-1404

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    UBUNTU-CVE-2021-1404

    Published: 8 Apr 2021Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-1404

    Summary:

    Details: A vulnerability in the PDF parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper buffer size tracking that may result in a heap buffer over-read. An attacker could exploit this vulnerability by sending a crafted PDF file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.

    References: https://ubuntu.com/security/CVE-2021-1404, https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html, https://ubuntu.com/security/notices/USN-4918-1, https://ubuntu.com/security/notices/USN-4918-2, https://ubuntu.com/security/notices/USN-4918-3, https://www.cve.org/CVERecord?id=CVE-2021-1404

    Affected packages

    Package

    Name: clamav

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-0ubuntu0.14.04.1+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.103.2+dfsg-0ubuntu0.14.04.1+esm1

    Affected versions

    0.97.8+dfsg-1ubuntu4
    0.97.8+dfsg-1ubuntu5

    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-2021-1404 | CVE-DB