CVE-2007-1661 - CVE House
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Status published Medium CVE-2007-1661

Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too far...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

perl-compatible regular expression library, mac os x, mac os x server
Vulnerable Versions:
0, 7.0, 7.1, 10.4.11

Timeline

Official Publish: November 7th, 2007
Last Modified: August 7th, 2024
Added to House: July 18th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.