CVE-2017-12837

7.5 HIGH
Published: September 19, 2017 Modified: May 13, 2026
View on NVD

Description

Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.debian.org/security/2017/dsa-3982
Source: cve@mitre.org
http://www.securityfocus.com/bid/100860
Source: cve@mitre.org
Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1492091
Source: cve@mitre.org
Issue Tracking Patch Third Party Advisory VDB Entry
https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5
Source: cve@mitre.org
Patch Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1
Source: cve@mitre.org
Release Notes Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1
Source: cve@mitre.org
Release Notes Vendor Advisory
https://rt.perl.org/Public/Bug/Display.html?id=131582
Source: cve@mitre.org
https://security.netapp.com/advisory/ntap-20180426-0001/
Source: cve@mitre.org
https://www.oracle.com/security-alerts/cpujul2020.html
Source: cve@mitre.org
http://www.debian.org/security/2017/dsa-3982
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/100860
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1492091
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory VDB Entry
https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Vendor Advisory
https://rt.perl.org/Public/Bug/Display.html?id=131582
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.netapp.com/advisory/ntap-20180426-0001/
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.oracle.com/security-alerts/cpujul2020.html
Source: af854a3a-2127-422b-91ae-364da2661108

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
6.2%
93th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-119

Affected Vendors

perl

Related CVEs

CVE-2026-12243 7.5
CVE-2026-8023 7.5
CVE-2026-7656 8.1
CVE-2026-51219 N/A
CVE-2026-51218 N/A