UBUNTU-CVE-2021-28676

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    UBUNTU-CVE-2021-28676

    Published: 10 May 2021Last Modified: 2 Apr 2026
    Upstream:
    CVE-2021-28676

    Summary:

    Details: An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.

    References: https://ubuntu.com/security/CVE-2021-28676, https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos, https://ubuntu.com/security/notices/USN-4963-1, https://www.cve.org/CVERecord?id=CVE-2021-28676, https://ubuntu.com/security/notices/USN-8135-1

    Affected packages

    Package

    Name: pillow

    Purl: pkg:deb/ubuntu/[email protected]+esm5?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.3.0-1ubuntu3.4+esm5

    Affected versions

    2.2.1-1ubuntu2
    2.2.1-2ubuntu1
    2.2.1-3ubuntu2
    2.2.1-3ubuntu3
    2.2.1-3ubuntu4
    2.2.1-3ubuntu6

    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-2021-28676 | CVE-DB