CVE-2023-47038 HIGH

CVE-2023-47038: Perl: write past buffer end via illegal user-defined unicode property

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-122
Published December 18, 2023
Last update January 22, 2026
View on NVD All CVEs

CVSS base score

7.0/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 18, 2023 CVE published
January 22, 2026 Record updated