CVE-2007-1661
PCRE Backtracking Information Disclosure and Denial of Service
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.
INFO
Published Date :
Nov. 7, 2007, 11:46 p.m.
Last Modified :
Oct. 16, 2018, 4:39 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.9
Exploitability Score :
10.0
Affected Products
The following products are affected by CVE-2007-1661
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2007-1661.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2007-1661 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2007-1661 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 16, 2018
Action Type Old Value New Value Removed Reference http://www.securityfocus.com/archive/1/archive/1/483579/100/0/threaded [No Types Assigned] Removed Reference http://www.securityfocus.com/archive/1/archive/1/483357/100/0/threaded [No Types Assigned] Added Reference http://www.securityfocus.com/archive/1/483579/100/0/threaded [No Types Assigned] Added Reference http://www.securityfocus.com/archive/1/483357/100/0/threaded [No Types Assigned] -
CVE Modified by [email protected]
Oct. 03, 2018
Action Type Old Value New Value Removed Reference http://www.ubuntulinux.org/support/documentation/usn/usn-547-1 [No Types Assigned] Added Reference https://usn.ubuntu.com/547-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 29, 2017
Action Type Old Value New Value Removed Reference http://xforce.iss.net/xforce/xfdb/38274 [No Types Assigned] Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/38274 [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 14, 2013
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2007-1661 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2007-1661
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
4.54 }} 0.43%
score
0.92680
percentile