National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2007-1661 Detail

Current 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.

Source:  MITRE
Description Last Modified:  11/07/2007
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 6.4 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:P) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
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://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-1399 Patch
http://www.debian.org/security/2008/dsa-1570
http://www.mandriva.com/security/advisories?name=MDKSA-2007:211
http://www.novell.com/linux/security/advisories/2007_62_pcre.html
http://www.pcre.org/changelog.txt
http://www.securityfocus.com/archive/1/483357/100/0/threaded
http://www.securityfocus.com/archive/1/483579/100/0/threaded
http://www.securityfocus.com/bid/26346
http://www.us-cert.gov/cas/techalerts/TA07-352A.html US Government Resource
http://www.vupen.com/english/advisories/2007/3725
http://www.vupen.com/english/advisories/2007/3790
http://www.vupen.com/english/advisories/2007/4238
http://www.vupen.com/english/advisories/2008/0924/references
https://exchange.xforce.ibmcloud.com/vulnerabilities/38274
https://issues.rpath.com/browse/RPL-1738
https://usn.ubuntu.com/547-1/
https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00181.html

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:pcre:perl-compatible_regular_expression_library:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:pcre:perl-compatible_regular_expression_library:7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:pcre:perl-compatible_regular_expression_library:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
7.2

Configuration 2 ( hide )
 cpe:2.3:o:apple:mac_os_x:10.4.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:apple:mac_os_x_server:10.4.11:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2007-1661
NVD Published Date:
11/07/2007
NVD Last Modified:
10/16/2018