7.8

CVE-2023-47038: fedoraproject fedora Heap-based Buffer Overflow

CVSS: 7.8v3.1HighModified
AliasesALPINE-CVE-2023-47038MGASA-2024-0021RHSA-2024:2228
Published 18-12-2023Last modified 22-01-2026

Vulnerability summary

CVE-2023-47038 is a high (CVSS 7.8) Heap-based Buffer Overflow vulnerability in fedoraproject fedora. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.5% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Duplicates 1 · Related 2

Timeline

  1. 18-12-2023
    PublishedVulnerability first disclosed.
  2. 22-01-2026
    Last modifiedVulnerability information updated.

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 metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.81%

Chance of exploitation in the next 30 days

Percentile

57%

Versus all other CVEs

30-day change

0.00 pp

From 0.81% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat192 products
Ubuntu3 products
  • perl< 5.30.0-9ubuntu0.5 | < 5.34.0-3ubuntu1.3 | < 5.36.0-10ubuntu1
  • perl6All versions (No fix recorded)
  • rakuAll versions (No fix recorded)
Alpine1 product
  • perl≥ 5.30.0, < 5.34.2-r0 | ≥ 5.30.0, < 5.36.2-r0 | ≥ 5.30.0, < 5.38.1-r0
Debian1 product
  • perl< 5.36.0-7+deb12u1 | < 5.36.0-10
Fedoraproject1 product
Mageia1 product
  • perl< 5.36.0-1.1.mga9
Perl1 product
  • perl≥ 5.30.0, ≤ 5.38.0

7 vendors · 200 products · Showing 200 of 308. Use Open JSON for the complete list.

References

28 links
Show all 28 references