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    CVE-2023-47038

    A vulnerability was found in perl 5.30.0 through 5.38.0. This issue occurs when a crafted regular expression is compiled by perl, which can allow an attacker controlled byte buffer overflow in a heap allocated buffer.

    Published:Nov 25, 2023
    Last Modified:Jan 22, 2026
    EPS:Dec 18, 2023
    EPSS Score:0.00108
    CVSS Score:7

    Affected Products

    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Perl
    Product
    Perl
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Aus
    Vendor
    Redhat
    Product
    Enterprise Linux Eus

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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    References

    https://access.redhat.com/errata/RHSA-2024:2228
    https://access.redhat.com/errata/RHSA-2024:3128
    https://access.redhat.com/security/cve/CVE-2023-47038
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056746
    https://bugzilla.redhat.com/show_bug.cgi?id=2249523
    https://access.redhat.com/errata/RHSA-2024:2228
    https://access.redhat.com/errata/RHSA-2024:3128
    https://access.redhat.com/security/cve/CVE-2023-47038
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056746
    https://bugzilla.redhat.com/show_bug.cgi?id=2249523
    https://github.com/Perl/perl5/commit/12c313ce49b36160a7ca2e9b07ad5bd92ee4a010
    https://github.com/Perl/perl5/commit/7047915eef37fccd93e7cd985c29fe6be54650b6
    https://github.com/Perl/perl5/commit/ff1f9f59360afeebd6f75ca1502f5c3ebf077da3
    https://github.com/aquasecurity/trivy/discussions/8400
    https://lists.fedoraproject.org/archives/list/[email protected]/message/GNEEWAACXQCEEAKSG7XX2D5YDRWLCIZJ/
    https://lists.fedoraproject.org/archives/list/[email protected]/message/UMDZZ4SCEW6FRWZDMXGAKZ35THTAWFG6/
    https://perldoc.perl.org/perl5382delta#CVE-2023-47038-Write-past-buffer-end-via-illegal-user-defined-Unicode-property
    https://ubuntu.com/security/CVE-2023-47100
    https://www.suse.com/security/cve/CVE-2023-47100.html

    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