CVE-2017-12837
"Perl Heap Buffer Overflow"
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.
INFO
Published Date :
Sept. 19, 2017, 6:29 p.m.
Last Modified :
July 15, 2020, 3:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2017-12837 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-12837.
| URL | Resource |
|---|---|
| http://www.debian.org/security/2017/dsa-3982 | |
| http://www.securityfocus.com/bid/100860 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1492091 | Issue Tracking Patch Third Party Advisory VDB Entry |
| https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5 | Patch Vendor Advisory |
| https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 | Release Notes Vendor Advisory |
| https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1 | Release 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2017-12837 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-12837 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jul. 15, 2020
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpujul2020.html [No Types Assigned] -
CVE Modified by [email protected]
Apr. 28, 2018
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20180426-0001/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 05, 2017
Action Type Old Value New Value Added Reference http://www.debian.org/security/2017/dsa-3982 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 04, 2017
Action Type Old Value New Value Changed Description Heap-based buffer overflow in the regular expression compiler in PERL before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (crash) via a crafted regular expression with the case-insensitive modifier. 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. Added Reference https://rt.perl.org/Public/Bug/Display.html?id=131582 [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 29, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1492091 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1492091 Issue Tracking, Patch, Third Party Advisory, VDB Entry Changed Reference Type https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 No Types Assigned https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1 Release Notes, Vendor Advisory Changed Reference Type https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5 No Types Assigned https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5 Patch, Vendor Advisory Changed Reference Type https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1 No Types Assigned https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1 Release Notes, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/100860 No Types Assigned http://www.securityfocus.com/bid/100860 Third Party Advisory, VDB Entry Added CWE CWE-119 Added CPE Configuration OR *cpe:2.3:a:perl:perl:5.24.2:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:perl:perl:5.26.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-12837 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-12837
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.20 }} 0.13%
score
0.89659
percentile