CVE-2023-47038: fedoraproject fedora Heap-based Buffer Overflow
CVSS: 7.8v3.1HighModified
AliasesALPINE-CVE-2023-47038MGASA-2024-0021RHSA-2024:2228RHSA-2024:3128UBUNTU-CVE-2023-47038DEBIAN-CVE-2023-47038
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.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2 · Duplicates 1 · Related 2Timeline
- 18-12-2023PublishedVulnerability first disclosed.
- 22-01-2026Last 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 versionHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources6 sources · 7.0–7.8
- CVE.orgCNA7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · AlpineEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · Red hatEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 score0.81%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Redhat192 products
- enterprise_linux8.0 | 9.0
- enterprise_linux_aus9.4
- enterprise_linux_eus9.4
- perl< 4:5.32.1-481.el9 | < 4:5.32.1-473.module+el8.10.0+21354+3ad137bb
- perl-Algorithm-Diff< 0:1.1903-10.module+el8.10.0+21354+3ad137bb
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
- fedoraEOL39
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- access.redhat.com/errata/RHSA-2024:2228Vendor AdvisoryX Refsource REDHATAdvisoryThird Party Advisory
- access.redhat.com/errata/RHSA-2024:3128Vendor AdvisoryX Refsource REDHATAdvisoryThird Party Advisory
- access.redhat.com/security/cve/CVE-2023-47038VDB EntryX Refsource REDHATREPORTBroken LinkThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2249523Issue TrackingX Refsource REDHATREPORTThird Party Advisory