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CVE-2023-47038

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

Published: Dec 18, 2023Updated: Nov 4, 2025 Sources: CVE List NVD BDU csafCWE-122
NVD MITRE
7.0CVSSHIGH
EPSS Score
0.8%
Top 47.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-122CWE-787

Affected Products

Red Hat Enterprise Linux 8Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 6Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 7Red Hat
On-premOS
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat
and 12 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

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
access.redhat.com
and 33 more references View all →

Timeline

Published
Dec 18, 2023
Last Updated
Nov 4, 2025

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