Back to Database
Status published
High
CVE-2017-12837
Heap-based buffer overflow in the S_regatom function in regcomp.c in...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2017-12837
Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.debian.org/security/2017/dsa-3982
- http://www.securityfocus.com/bid/100860
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1
- https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1
- https://security.netapp.com/advisory/ntap-20180426-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=1492091
- https://rt.perl.org/Public/Bug/Display.html?id=131582
- https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5
More from perl
View All →CVE-2025-40909
Perl threads have a working directory race condition where file operations may target unintended paths
Unknown
0
CVE-2025-1828
Perl's Crypt::Random module after 1.05 and before 1.56 may use rand() function for cryptographic functions
Unknown
0
CVE-2024-56406
Perl is vulnerable to a heap buffer overflow when transliterating non-ASCII bytes
Unknown
0
CVE-2022-48522
In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based...
Critical
9.8
CVE-2020-16156
CPAN 2.28 allows Signature Verification Bypass....
High
7.8
Affected Vendor
perl
View all reports →Affected Software
perl
Vulnerable Versions:
0, 5.26.0
Timeline
Official Publish:
September 19th, 2017
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.