Vulnerability in Apple Mac OS X
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 of service (crash), as demonstrated by the "\X?\d" and "\P{L}?\d" patterns.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.4 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.025 (84.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Apple Mac OS X — versions 10.4.11
- Apple Mac OS X Server — versions 10.4.11
- Pcre Perl-Compatible Regular Expression Library — versions 7.0, 7.1
References
- secunia.com/advisories/30219 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/29267 (Vendor Advisory, third-party-advisory)
- usn.ubuntu.com/547-1/ (vendor-advisory)
- security.gentoo.org/glsa/glsa-200711-30.xml (vendor-advisory)
- www.vupen.com/english/advisories/2007/4238 (vdb-entry)
- www.securityfocus.com/archive/1/483357/100/0/threaded (mailing-list)
- www.us-cert.gov/cas/techalerts/TA07-352A.html (US Government Resource, third-party-advisory)
- secunia.com/advisories/27538 (Vendor Advisory, third-party-advisory)
- www.securityfocus.com/archive/1/483579/100/0/threaded (mailing-list)
- secunia.com/advisories/28136 (Vendor Advisory, third-party-advisory)