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CVE
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CVE-2017-12837Date: (C)2017-09-22   (M)2023-12-22


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.5CVSS Score : 5.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
BID-100860
DSA-3982
https://bugzilla.redhat.com/show_bug.cgi?id=1492091
https://perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5
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=131582
https://security.netapp.com/advisory/ntap-20180426-0001/
https://www.oracle.com/security-alerts/cpujul2020.html

CPE    1
cpe:/a:perl:perl
CWE    1
CWE-119
OVAL    13
oval:org.secpod.oval:def:89044661
oval:org.secpod.oval:def:2101937
oval:org.secpod.oval:def:1800087
oval:org.secpod.oval:def:1800747
...

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