CVE-2023-47038
Perl: write past buffer end via illegal user-defined unicode property
CVSS Score
7.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-122 |
| Published | Dec 18, 2023 |
| Last Updated | Jan 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2228 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:3128 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-47038 bugs.debian.org: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056746 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2249523 github.com: https://github.com/aquasecurity/trivy/discussions/8400 suse.com: https://www.suse.com/security/cve/CVE-2023-47100.html ubuntu.com: https://ubuntu.com/security/CVE-2023-47100 github.com: https://github.com/Perl/perl5/commit/ff1f9f59360afeebd6f75ca1502f5c3ebf077da3 github.com: https://github.com/Perl/perl5/commit/7047915eef37fccd93e7cd985c29fe6be54650b6 github.com: https://github.com/Perl/perl5/commit/12c313ce49b36160a7ca2e9b07ad5bd92ee4a010 lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/GNEEWAACXQCEEAKSG7XX2D5YDRWLCIZJ/ perldoc.perl.org: https://perldoc.perl.org/perl5382delta#CVE-2023-47038-Write-past-buffer-end-via-illegal-user-defined-Unicode-property lists.fedoraproject.org: https://lists.fedoraproject.org/archives/list/[email protected]/message/UMDZZ4SCEW6FRWZDMXGAKZ35THTAWFG6/