CVE-2007-1661
Medium
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.
SeverityMedium
CVSS6.4
Exploit probability—
Product
Pcre Perl-compatible Regular Expression Library
PublishedNov 7, 2007
First seenNov 7, 2007
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pcre perl-compatible_regular_expression_library | v ≤ 7.2, 7.0, 7.1 | — |
| apple mac_os_x | 10.4.11 | — |
| apple mac_os_x_server | 10.4.11 | — |
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