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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pcre | Perl-Compatible Regular Expression Library | <= 7.2 |
| Apple | Mac Os X | 10.4.11 |
| Apple | Mac Os X Server | 10.4.11 |
References
- http://bugs.gentoo.org/show_bug.cgi?id=198976
- http://docs.info.apple.com/article.html?artnum=307179
- http://docs.info.apple.com/article.html?artnum=307562
- http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html
- http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
- http://mail.gnome.org/archives/gtk-devel-list/2007-November/msg00022.html
- http://secunia.com/advisories/27538Vendor Advisory
- http://secunia.com/advisories/27543Vendor Advisory
- http://secunia.com/advisories/27554Vendor Advisory
- http://secunia.com/advisories/27697Vendor Advisory
- http://secunia.com/advisories/27741Vendor Advisory
- http://secunia.com/advisories/27773Vendor Advisory
- http://secunia.com/advisories/28136Vendor Advisory
- http://secunia.com/advisories/28406Vendor Advisory
- http://secunia.com/advisories/28414Vendor Advisory
FAQ
What is CVE-2007-1661?
CVE-2007-1661 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 attacker...
How severe is CVE-2007-1661?
CVE-2007-1661 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2007-1661?
Check the references section above for vendor advisories and patch information. Affected products include: Pcre Perl-Compatible Regular Expression Library, Apple Mac Os X, Apple Mac Os X Server.