CVEvulnerability

CVE-2007-1661

6.4 MEDIUM Published 2007-11-07 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2007-11-07
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:P

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.

Affected configurations

• pcre perl-compatible regular expression library (<= 7.2) • pcre perl-compatible regular expression library 7.0 • pcre perl-compatible regular expression library 7.1 • apple mac os x 10.4.11 • apple mac os x server 10.4.11

References