UBUNTU-CVE-2021-4156

    Dashboard / Vulnerabilities / UBUNTU-CVE-2021-4156

    UBUNTU-CVE-2021-4156

    Published: 23 Mar 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-4156

    Summary:

    Details: An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws.

    References: https://ubuntu.com/security/CVE-2021-4156, https://ubuntu.com/security/notices/USN-5409-1, https://www.cve.org/CVERecord?id=CVE-2021-4156, https://ubuntu.com/security/notices/USN-7273-1

    Affected packages

    Package

    Name: libsndfile

    Purl: pkg:deb/ubuntu/[email protected]+esm4?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.0.25-7ubuntu2.2+esm4

    Affected versions

    1.0.25-7ubuntu1
    1.0.25-7ubuntu2
    1.0.25-7ubuntu2.1
    1.0.25-7ubuntu2.2
    1.0.25-7ubuntu2.2+esm1
    1.0.25-7ubuntu2.2+esm2
    1.0.25-7ubuntu2.2+esm3

    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-2021-4156 | CVE-DB