5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.019 Low
EPSS
Percentile
88.4%
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.
Author | Note |
---|---|
leosilva | portion of affected code is quite different in precise, needs triage could not reproduce in precise. |
launchpad.net/bugs/cve/CVE-2017-12837
nvd.nist.gov/vuln/detail/CVE-2017-12837
perl5.git.perl.org/perl.git/commitdiff/96c83ed78aeea1a0496dd2b2d935869a822dc8a5
rt.perl.org/Public/Bug/Display.html?id=131582 (not yet public)
security-tracker.debian.org/tracker/CVE-2017-12837
ubuntu.com/security/notices/USN-3478-1
www.cve.org/CVERecord?id=CVE-2017-12837
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.019 Low
EPSS
Percentile
88.4%