CVE-2011-4539
ISC DHCP Regular Expression Denial of Service (DoS)
Description
dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.
INFO
Published Date :
Dec. 8, 2011, 11:55 a.m.
Last Modified :
April 1, 2020, 1:09 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.9
Exploitability Score :
10.0
Affected Products
The following products are affected by CVE-2011-4539
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-2011-4539
.
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-2011-4539
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2011-4539
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 -
Modified Analysis by [email protected]
Apr. 01, 2020
Action Type Old Value New Value Changed Reference Type http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.html No Types Assigned http://lists.fedoraproject.org/pipermail/package-announce/2011-December/070980.html Mailing List, Third Party Advisory Changed Reference Type http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.html No Types Assigned http://lists.fedoraproject.org/pipermail/package-announce/2012-January/071549.html Mailing List, Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.html No Types Assigned http://lists.opensuse.org/opensuse-updates/2011-12/msg00006.html Mailing List, Third Party Advisory Changed Reference Type http://secunia.com/advisories/47153 No Types Assigned http://secunia.com/advisories/47153 Third Party Advisory Changed Reference Type http://secunia.com/advisories/47178 No Types Assigned http://secunia.com/advisories/47178 Third Party Advisory Changed Reference Type http://security.gentoo.org/glsa/glsa-201301-06.xml No Types Assigned http://security.gentoo.org/glsa/glsa-201301-06.xml Third Party Advisory Changed Reference Type http://www.debian.org/security/2012/dsa-2519 No Types Assigned http://www.debian.org/security/2012/dsa-2519 Third Party Advisory Changed Reference Type http://www.mandriva.com/security/advisories?name=MDVSA-2011:182 No Types Assigned http://www.mandriva.com/security/advisories?name=MDVSA-2011:182 Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/50971 No Types Assigned http://www.securityfocus.com/bid/50971 Third Party Advisory, VDB Entry Changed Reference Type http://www.securitytracker.com/id?1026393 No Types Assigned http://www.securitytracker.com/id?1026393 Third Party Advisory, VDB Entry Changed Reference Type http://www.ubuntu.com/usn/USN-1309-1 No Types Assigned http://www.ubuntu.com/usn/USN-1309-1 Third Party Advisory Changed Reference Type https://exchange.xforce.ibmcloud.com/vulnerabilities/71680 No Types Assigned https://exchange.xforce.ibmcloud.com/vulnerabilities/71680 Third Party Advisory, VDB Entry Changed CPE Configuration OR *cpe:2.3:a:isc:dhcp:4.0:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.1:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.1:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.1:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:b2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:b3:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.3:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.3:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.3:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1.2:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.1:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.2:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.3:*:*:*:*:*:*:* OR *cpe:2.3:a:isc:dhcp:4.0:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.1:-:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.1:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.1:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:-:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:b2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:b3:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.2:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.3:-:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.3:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.0.3:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1.2:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:-:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.1:-:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.2:-:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.2.3:-:*:*:*:*:*:* Changed CPE Configuration OR *cpe:2.3:a:isc:dhcp:4.1-esv:*:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:* OR *cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:* *cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 29, 2017
Action Type Old Value New Value Removed Reference http://xforce.iss.net/xforce/xfdb/71680 [No Types Assigned] Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/71680 [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 08, 2011
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-2011-4539
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-2011-4539
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.84 }} 0.82%
score
0.90699
percentile