UBUNTU-CVE-2023-4156

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    UBUNTU-CVE-2023-4156

    Published: 8 Aug 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-4156
    Aliases:
    USN-6373-1

    Summary:

    Details: A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.

    References: https://ubuntu.com/security/CVE-2023-4156, https://mail.gnu.org/archive/html/bug-gawk/2022-08/msg00000.html, https://mail.gnu.org/archive/html/bug-gawk/2022-08/msg00023.html, https://git.savannah.gnu.org/gitweb/?p=gawk.git;a=commitdiff;h=e709eb829448ce040087a3fc5481db6bfcaae212, https://ubuntu.com/security/notices/USN-6373-1, https://www.cve.org/CVERecord?id=CVE-2023-4156

    Affected packages

    Package

    Name: gawk

    Purl: pkg:deb/ubuntu/gawk@1:4.0.1+dfsg-2.1ubuntu2+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:4.0.1+dfsg-2.1ubuntu2+esm1

    Affected versions

    1:4.0.1+dfsg-2.1ubuntu2

    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
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