UBUNTU-CVE-2022-1473

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    UBUNTU-CVE-2022-1473

    Published: 3 May 2022Last Modified: 22 Apr 2026
    Upstream:
    CVE-2022-1473

    Summary:

    Details: The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).

    References: https://ubuntu.com/security/CVE-2022-1473, https://mta.openssl.org/pipermail/openssl-announce/2022-May/000224.html, https://ubuntu.com/security/notices/USN-5402-1, https://ubuntu.com/security/notices/USN-5402-2, https://www.cve.org/CVERecord?id=CVE-2022-1473

    Affected packages

    Package

    Name: openssl

    Purl: pkg:deb/ubuntu/[email protected]+esm3?arch=source&distro=esm-infra/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.0.2g-1ubuntu4.20+esm3

    Affected versions

    1.0.2d-0ubuntu1
    1.0.2d-0ubuntu2
    1.0.2e-1ubuntu1
    1.0.2f-2ubuntu1
    1.0.2g-1ubuntu2
    1.0.2g-1ubuntu3
    1.0.2g-1ubuntu4
    1.0.2g-1ubuntu4.1
    1.0.2g-1ubuntu4.2
    1.0.2g-1ubuntu4.4
    1.0.2g-1ubuntu4.5
    1.0.2g-1ubuntu4.6
    1.0.2g-1ubuntu4.8
    1.0.2g-1ubuntu4.9
    1.0.2g-1ubuntu4.10
    1.0.2g-1ubuntu4.11
    1.0.2g-1ubuntu4.12
    1.0.2g-1ubuntu4.13
    1.0.2g-1ubuntu4.14
    1.0.2g-1ubuntu4.15
    1.0.2g-1ubuntu4.16
    1.0.2g-1ubuntu4.17
    1.0.2g-1ubuntu4.18
    1.0.2g-1ubuntu4.19
    1.0.2g-1ubuntu4.20
    1.0.2g-1ubuntu4.20+esm1
    1.0.2g-1ubuntu4.20+esm2

    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-2022-1473 | CVE-DB