UBUNTU-CVE-2021-3700

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    UBUNTU-CVE-2021-3700

    Published: 24 Feb 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2021-3700
    Aliases:
    USN-5784-1

    Summary:

    Details: A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing large amounts of buffered write data in the case of a slow or blocked destination.

    References: https://ubuntu.com/security/CVE-2021-3700, https://access.redhat.com/security/cve/CVE-2021-3700, https://ubuntu.com/security/notices/USN-5784-1, https://www.cve.org/CVERecord?id=CVE-2021-3700

    Affected packages

    Package

    Name: usbredir

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.6-2ubuntu1.1+esm1

    Affected versions

    0.6-2

    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-2021-3700 | CVE-DB