FreeBSD 4.3/4.4/4.5/4.6 Kqueue denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in FreeBSD 4.3/4.4/4.5/4.6. The affected element is an unknown function of the component Kqueue. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2002-0831. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in FreeBSD 4.3/4.4/4.5/4.6 (Operating System). It has been classified as problematic. This affects some unknown processing of the component Kqueue. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

The kqueue mechanism in FreeBSD 4.3 through 4.6 STABLE allows local users to cause a denial of service (kernel panic) via a pipe call in which one end is terminated and an EVFILT_WRITE filter is registered for the other end.

The bug was discovered 08/05/2002. The weakness was disclosed 08/05/2002 by Mark Delany as not defined posting (Bugtraq). The advisory is shared at marc.theaimsgroup.com. This vulnerability is uniquely identified as CVE-2002-0831. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are unknown but an exploit is available.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (9774), SecurityFocus (BID 5405†), OSVDB (5069†) and Vulnerability Center (SBV-22696†). The entry VDB-18715 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

08/05/2002 🔍
08/05/2002 +0 days 🔍
08/05/2002 +0 days 🔍
08/05/2002 +0 days 🔍
08/06/2002 +1 days 🔍
08/12/2002 +6 days 🔍
04/09/2004 +605 days 🔍
06/25/2009 +1903 days 🔍
07/22/2014 +1853 days 🔍
09/06/2019 +1872 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: marc.theaimsgroup.com
Researcher: Mark Delany
Status: Not defined

CVE: CVE-2002-0831 (🔍)
GCVE (CVE): GCVE-0-2002-0831
GCVE (VulDB): GCVE-100-18717
X-Force: 9774
SecurityFocus: 5405 - FreeBSD kqueue Kernel Panic Denial Of Service Vulnerability
OSVDB: 5069 - FreeBSD kqueue Mechanism EVFILT_WRITE filter DoS
Vulnerability Center: 22696 - FreeBSD 4.3-4.6 STABLE Kqueue Mechanism Pipe Call Local DoS Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/23/2014 00:12
Updated: 09/06/2019 17:57
Changes: 07/23/2014 00:12 (64), 09/06/2019 17:57 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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