6.4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:N/A:P
0.028 Low
EPSS
Percentile
90.7%
Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too
far when matching certain input bytes against some regex patterns in
non-UTF-8 mode, which allows context-dependent attackers to obtain
sensitive information or cause a denial of service (crash), as demonstrated
by the “\X?\d” and “\P{L}?\d” patterns.