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Critical severity · published Sep 19, 2017
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…
9.1
CVSS
5.9%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.9% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PE
Perl · Perl
through 5.24.2; 5.26.0 · source: NVD
Affected product
PE
Perl
Perl
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12883
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-12883
Patch
http://mirror.cucumberlinux.com/cucumber/cucumber-1.0/source/lang-base/perl/patches/CVE-2017-12883.patch
www.debian.org
http://www.debian.org/security/2017/dsa-3982
Third Party Advisory
http://www.securityfocus.com/bid/100852
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1492093
Patch
https://perl5.git.perl.org/perl.git/commitdiff/2be4edede4ae226e2eebd4eff28cedd2041f300f#patch1
Release Notes
https://perl5.git.perl.org/perl.git/log/refs/tags/v5.24.3-RC1
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