UBUNTU-CVE-2021-34193

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    UBUNTU-CVE-2021-34193

    Published: 22 Aug 2023Last Modified: 4 Feb 2026

    Summary:

    Details: Stack overflow vulnerability in OpenSC smart card middleware before 0.23 via crafted responses to APDUs.

    References: https://ubuntu.com/security/CVE-2021-34193, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28768, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29912, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30800, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28185, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28383, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=27719, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32149, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=30112, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31448, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31540, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28855, https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843, https://www.cve.org/CVERecord?id=CVE-2021-34193, https://github.com/OpenSC/OpenSC/issues/2841

    Affected packages

    Package

    Name: opensc

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    0.15.0-1ubuntu1
    0.15.0-1ubuntu1+esm1

    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-2021-34193 | CVE-DB