CVE-2017-12883

moderate-risk

Published 2017-09-19

Buffer overflow in the S_grok_bslash_N 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 disclose sensitive information or cause a denial of service (application crash) via a crafted regular expression with an invalid '\N{U+...}' escape.

Do I need to act?

4.7% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 9.1/10 Critical

NETWORK / LOW complexity

Affected Products (2)

Perl

Affected Vendors

Perl

References (20)

Patch http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patc...

http://www.debian.org/security/2017/dsa-3982

Third Party Advisory http://www.securityfocus.com/bid/100852

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1492093

Patch https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd20...

Release Notes https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1

Release Notes https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1

https://rt.perl.org/Public/Bug/Display.html?id=131598

https://security.netapp.com/advisory/ntap-20180426-0001/

https://www.oracle.com/security-alerts/cpujul2020.html