CVE-2017-12837

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.26.1-RC1	Release Notes 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/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5	Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1492091	Issue Tracking Patch Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/100860	Third Party Advisory VDB Entry
https://rt.perl.org/Public/Bug/Display.html?id=131582
http://www.debian.org/security/2017/dsa-3982
https://security.netapp.com/advisory/ntap-20180426-0001/
https://www.oracle.com/security-alerts/cpujul2020.html

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:perl:perl:5.26.0:::::::*
	cpe:2.3:a:perl:perl::::::::

Information

Published : 2017-09-19 11:29

Updated : 2020-07-14 20:15

NVD link : CVE-2017-12837

Mitre link : CVE-2017-12837

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

perl

perl

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