CVE-2023-47038
No exploitation reported by the sources we read.
- Published2023-12-18
- WeaknessCWE-122 · CWE-787
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2023-12-1814:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-47038?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-47038?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.0 | = 8.0 | no fix published | NVD |
| 9.0 | = 9.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 39.x | = 39 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.x | ≥ 5.30.0, ≤ 5.38.0 | no fix published | NVD |
2 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- perlAlmaLinux:9all versions · fixed in 4:5.32.1-481.el9and 5 other packages
- perlAlmaLinux:8all versions · fixed in 4:5.32.1-473.module_el8.10.0+3779+d5938d28and 5 other packages
- perl-Algorithm-DiffAlmaLinux:8all versions · fixed in 1.1903-10.module_el8.6.0+2766+8bf0b7ce
- perl-Archive-TarAlmaLinux:8all versions · fixed in 2.38-3.module_el8.6.0+2766+8bf0b7ce
- perl-Archive-ZipAlmaLinux:8all versions · fixed in 1.68-3.module_el8.6.0+2766+8bf0b7ce
- perl-Attribute-HandlersAlmaLinux:9all versions · fixed in 1.01-481.el9
- perl-Attribute-HandlersAlmaLinux:8all versions · fixed in 1.01-473.module_el8.10.0+3779+d5938d28
- perl-autodieAlmaLinux:8all versions · fixed in 2.34-1.module_el8.6.0+2766+8bf0b7ce
265 more package ranges on OSV.dev
Fix
Advisories and patches
- bugs.debian.orgPatch
- perldoc.perl.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2023-12-18
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-47038?
Is CVE-2023-47038 actively exploited?
What is the CVSS score for CVE-2023-47038?
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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.