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TI-2023-25390 Aliases CVE-2023-47038GHSA-96fh-9q43-rmjh

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

Priority LOW 38CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 2 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00814 57th percentileScored 2026-11-07
Fix Partial perl: 5.34.3, 5.36.3, 5.38.2Red Hat: 2 advisoriesRed Hat: 2 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—perl5.30.0 to before 5.34.3; 5.36.0 to before 5.36.3; 5.38.0 to before 5.38.25.34.3, 5.36.3, 5.38.2Patch availableCNA
Red HatRed Hat Enterprise Linux 8—8100020240314121426.9fe1d287Patch availableCNA
Red HatRed Hat Enterprise Linux 9—4:5.32.1-481.el9Patch availableCNA
Red HatRed Hat Enterprise Linux 6——Not affectedCNA
Red HatRed Hat Enterprise Linux 7——Not affectedCNA
Red HatRed Hat Enterprise Linux 8——Not affectedCNA
Red HatRed Hat Enterprise Linux 8——No fix listedCNA
  • perl Vendor— Affected 5.30.0 to before 5.34.3; 5.36.0 to before 5.36.3; 5.38.0 to before 5.38.2 Fixed in 5.34.3, 5.36.3, 5.38.2 Patch available CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 8100020240314121426.9fe1d287 Patch available CNA
  • Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 4:5.32.1-481.el9 Patch available CNA
  • Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:*5.30.0 – 5.38.0VulnerablePerl
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*39VulnerableFedoraproject
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*9.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_aus:9.4:*:*:*:*:*:*:*9.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:9.4:*:*:*:*:*:*:*9.4VulnerableRed Hat
  • cpe:2.3:a:perl:perl:*:*:*:*:*:*:*:* Versions 5.30.0 – 5.38.0 Vulnerable ·Perl
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_aus:9.4:*:*:*:*:*:*:* Versions 9.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:9.4:*:*:*:*:*:*:* Versions 9.4 Vulnerable ·Red Hat

Remediation

  • Fix · CNA perl Fixed in 5.34.3, 5.36.3, 5.38.2

Red Hat 2 advisories

  • RHSA-2024:3128 Released 2024-05-22 · Red Hat rating Moderate
    perl:5.32 security update
    • Red Hat Enterprise Linux AppStream (v. 8) perl-4:5.32.1-473.module+el8.10.0+21354+3ad137bb.aarch64::perl:5.32, perl-4:5.32.1-473.module+el8.10.0+21354+3ad137bb.ppc64le::perl:5.32, perl-4:5.32.1-473.module+el8.10.0+21354+3ad137bb.s390x::perl:5.32 +47
  • RHSA-2024:2228 Released 2024-04-30 · Red Hat rating Moderate
    perl security update
    • Red Hat Enterprise Linux AppStream (v. 9) perl-4:5.32.1-481.el9, perl-Attribute-Handlers-1.01-481.el9, perl-AutoLoader-5.74-481.el9 +47

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:3128
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:2228
Not affected: 3 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-47038
  2. 2026-10-03 Alias added: GHSA-96fh-9q43-rmjh

References

Patch 1

Advisory 6

  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
See all 1955 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences