CVE-2007-1661 — Perl-compatible Regular Expression Library vulnerability
9 documents8 sources
Severity
6.4MEDIUMNVD
EPSS
2.0%
top 16.16%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedNov 7
Latest updateMay 1
Description
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.
CVSS vector
AV:N/AC:L/C:P/I:N/A:PExploitability: 10.0 | Impact: 4.9