CVE-2017-12837

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-119

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.debian.org/security/2017/dsa-3982
http://www.securityfocus.com/bid/100860Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1492091Issue Tracking, Patch, Third Party Advisory, VDB Entry
https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5Patch, Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1Release Notes, Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1Release Notes, Vendor Advisory
https://rt.perl.org/Public/Bug/Display.html?id=131582
https://security.netapp.com/advisory/ntap-20180426-0001/
https://www.oracle.com/security-alerts/cpujul2020.html
http://www.debian.org/security/2017/dsa-3982
http://www.securityfocus.com/bid/100860Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1492091Issue Tracking, Patch, Third Party Advisory, VDB Entry
https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5Patch, Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1Release Notes, Vendor Advisory
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1Release Notes, Vendor Advisory
https://rt.perl.org/Public/Bug/Display.html?id=131582
https://security.netapp.com/advisory/ntap-20180426-0001/
https://www.oracle.com/security-alerts/cpujul2020.html

Timeline

Published: Sep 19, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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