// For flags

CVE-2007-1661

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

La librería Perl-Compatible Regular Expression (PCRE) anterior a 7.3 vuelve demasiado atrás cuando compara determinados bytes de entrada con algunos patrones de expresiones regulares en modo no-UTF-8, lo cual permite a atacantes locales o remotos (dependiendo del contexto) obtener información sensible o provocar una denegación de servicio (caída), como se ha demostrado mediante los patrones "\X?\d" y "\P{L}?\d".

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2007-03-24 CVE Reserved
  • 2007-11-07 CVE Published
  • 2024-08-07 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
References (44)
URL Tag Source
http://bugs.gentoo.org/show_bug.cgi?id=198976 X_refsource_misc
http://docs.info.apple.com/article.html?artnum=307179 X_refsource_confirm
http://docs.info.apple.com/article.html?artnum=307562 X_refsource_confirm
http://mail.gnome.org/archives/gtk-devel-list/2007-November/msg00022.html Mailing List
http://www.pcre.org/changelog.txt X_refsource_confirm
http://www.securityfocus.com/archive/1/483357/100/0/threaded Mailing List
http://www.securityfocus.com/archive/1/483579/100/0/threaded Mailing List
http://www.securityfocus.com/bid/26346 Vdb Entry
http://www.us-cert.gov/cas/techalerts/TA07-352A.html Third Party Advisory
http://www.vupen.com/english/advisories/2007/3725 Vdb Entry
http://www.vupen.com/english/advisories/2007/3790 Vdb Entry
http://www.vupen.com/english/advisories/2007/4238 Vdb Entry
http://www.vupen.com/english/advisories/2008/0924/references Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/38274 Vdb Entry
https://issues.rpath.com/browse/RPL-1738 X_refsource_confirm
URL Date SRC
URL Date SRC
http://www.debian.org/security/2007/dsa-1399 2018-10-16
URL Date SRC
http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html 2018-10-16
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html 2018-10-16
http://secunia.com/advisories/27538 2018-10-16
http://secunia.com/advisories/27543 2018-10-16
http://secunia.com/advisories/27554 2018-10-16
http://secunia.com/advisories/27697 2018-10-16
http://secunia.com/advisories/27741 2018-10-16
http://secunia.com/advisories/27773 2018-10-16
http://secunia.com/advisories/28136 2018-10-16
http://secunia.com/advisories/28406 2018-10-16
http://secunia.com/advisories/28414 2018-10-16
http://secunia.com/advisories/28714 2018-10-16
http://secunia.com/advisories/28720 2018-10-16
http://secunia.com/advisories/29267 2018-10-16
http://secunia.com/advisories/29420 2018-10-16
http://secunia.com/advisories/30106 2018-10-16
http://secunia.com/advisories/30155 2018-10-16
http://secunia.com/advisories/30219 2018-10-16
http://security.gentoo.org/glsa/glsa-200711-30.xml 2018-10-16
http://security.gentoo.org/glsa/glsa-200801-02.xml 2018-10-16
http://security.gentoo.org/glsa/glsa-200801-18.xml 2018-10-16
http://security.gentoo.org/glsa/glsa-200801-19.xml 2018-10-16
http://security.gentoo.org/glsa/glsa-200805-11.xml 2018-10-16
http://www.debian.org/security/2008/dsa-1570 2018-10-16
http://www.mandriva.com/security/advisories?name=MDKSA-2007:211 2018-10-16
http://www.novell.com/linux/security/advisories/2007_62_pcre.html 2018-10-16
https://usn.ubuntu.com/547-1 2018-10-16
https://www.redhat.com/archives/fedora-package-announce/2008-March/msg00181.html 2018-10-16
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Pcre
Search vendor "Pcre"
 Perl-compatible Regular Expression Library
Search vendor "Pcre" for product "Perl-compatible Regular Expression Library"
 <= 7.2
Search vendor "Pcre" for product "Perl-compatible Regular Expression Library" and version " <= 7.2"
-
Affected
Pcre
Search vendor "Pcre"
 Perl-compatible Regular Expression Library
Search vendor "Pcre" for product "Perl-compatible Regular Expression Library"
 7.0
Search vendor "Pcre" for product "Perl-compatible Regular Expression Library" and version "7.0"
-
Affected
Pcre
Search vendor "Pcre"
 Perl-compatible Regular Expression Library
Search vendor "Pcre" for product "Perl-compatible Regular Expression Library"
 7.1
Search vendor "Pcre" for product "Perl-compatible Regular Expression Library" and version "7.1"
-
Affected
Apple
Search vendor "Apple"
 Mac Os X
Search vendor "Apple" for product "Mac Os X"
 10.4.11
Search vendor "Apple" for product "Mac Os X" and version "10.4.11"
-
Affected
Apple
Search vendor "Apple"
 Mac Os X Server
Search vendor "Apple" for product "Mac Os X Server"
 10.4.11
Search vendor "Apple" for product "Mac Os X Server" and version "10.4.11"
-
Affected