Vulnerability CVE-2007-1661

Vulnerability CVE-2007-1661

Published: 2007-11-07 Modified: 2012-02-12

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.

Type:

CWE-Other

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:P)

CVSS Base Score	Impact Subscore	Exploitability Subscore
6.4/10	4.9/10	10/10

Exploit range	Attack complexity	Authentication
Remote	Low	No required
Confidentiality impact	Integrity impact	Availability impact
Partial	None	Partial

Affected software
PCRE -> PCRE
PCRE -> Perl-compatible regular expression library
Apple -> Mac os x
Apple -> Mac os x server

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://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

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

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

Vulnerability CVE-2007-1661

CWE-Other

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:P)

6.4/10

4.9/10

10/10

Remote

Low

No required

Partial

None

Partial

Affected software

References: