CVE-2007-1661
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…
Does this matter?
Lower severity and a low EPSS score (2.49%). Track it; it rarely justifies an emergency change on its own.
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 2.0
- 6.4 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P
- EPSS
- 2.49% probability · 84th percentile
- CISA KEV
- Not listed
- Affected
- pcre/perl-compatible regular expression library · apple/mac os x · apple/mac os x server
- Source
- cve@mitre.org
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
- http://secunia.com/advisories/28714Vendor Advisory
- http://secunia.com/advisories/28720Vendor Advisory
- http://secunia.com/advisories/29267Vendor Advisory
- http://secunia.com/advisories/29420Vendor Advisory
- http://secunia.com/advisories/30106Vendor Advisory
- http://secunia.com/advisories/30155Vendor Advisory
- http://secunia.com/advisories/30219Vendor Advisory
- http://security.gentoo.org/glsa/glsa-200711-30.xml
- http://security.gentoo.org/glsa/glsa-200801-02.xml
- http://security.gentoo.org/glsa/glsa-200801-18.xml
- http://security.gentoo.org/glsa/glsa-200801-19.xml
- http://security.gentoo.org/glsa/glsa-200805-11.xml
- http://www.debian.org/security/2007/dsa-1399Patch
- http://www.debian.org/security/2008/dsa-1570
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:211
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.