Buffer overflow in Perl
CVE-2023-47038
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.
Vulnerability class: Buffer Overflow
EPSS: 0.008 (53.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Perl
- Fedoraproject Fedora — versions 39
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 8100020240314121426.9fe1d287
- Red Hat Enterprise Linux 9 — versions 4:5.32.1-481.el9
- Redhat Enterprise_linux — versions 8.0, 9.0
- Redhat Enterprise_linux_aus — versions 9.4
- Redhat Enterprise_linux_eus — versions 9.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry, Broken Link)
- secalert@redhat.com (Patch, Mailing List)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Third Party Advisory, Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-47038?
- CVE-2023-47038 is a high-severity vulnerability in Perl, classified under Heap-based Buffer Overflow. CVSS score: 7.0/10. Published 2023-12-18.
- How severe is CVE-2023-47038?
- High severity. CVSS v3 base score is 7.0 out of 10.
- Is CVE-2023-47038 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.