Vulnerability Report

CVE-2017-12883

Title: Perl Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2017-12883.

CWE Category CWE-119

Published Date Sep 19, 2017

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 9.1 CVSS v3.0

Exploit Probability (EPSS)

5.91%

Vulnerability Summary

CVE-2017-12883: 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.

Impacted Vendors

perl 1

larry_wall 1

Reference Links

http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patch http://www.debian.org/security/2017/dsa-3982 http://www.securityfocus.com/bid/100852 https://bugzilla.redhat.com/show_bug.cgi?id=1492093 https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd2041f300f#patch1 https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 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 http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patch http://www.debian.org/security/2017/dsa-3982 http://www.securityfocus.com/bid/100852 https://bugzilla.redhat.com/show_bug.cgi?id=1492093 https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd2041f300f#patch1 https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 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

CVSS v3.0

Source Entity [email protected]

Severity CRITICAL

9.1

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

6.4

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns