FreeBSD 4.x readv integer coercion

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in FreeBSD 4.x. It has been rated as critical. The impacted element is the function readv. Performing a manipulation results in integer coercion. Access to the local network is required for this attack. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in FreeBSD 4.x (Operating System). This affects the function readv. The manipulation with an unknown input leads to a integer coercion vulnerability. CWE is classifying the issue as CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 10/01/2003 by Joost Pol (DiGiT) with Pine Digital Security (Website). It is possible to read the advisory at pine.nl. The attack needs to approached within the local network. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.FreeBSD.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (13341), SecurityFocus (BID 8749†), OSVDB (5988†), Secunia (SA9926†) and SecurityTracker (ID 1007869†). Further details are available at ftp.freebsd.org. Similar entry is available at VDB-317. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Operating System

Name

FreeBSD

Version

License

open-source

Website

Product: https://www.freebsd.org/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: ftp.FreeBSD.org

Timelineinfo

10/01/2003 🔍
10/02/2003 +1 days 🔍
10/02/2003 +0 days 🔍
10/03/2003 +1 days 🔍
10/06/2003 +2 days 🔍
06/26/2019 +5742 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: pine.nl
Researcher: Joost Pol (DiGiT)
Organization: Pine Digital Security
Status: Confirmed

GCVE (VulDB): GCVE-100-315
X-Force: 13341 - FreeBSD readv could leak sensitive file descriptors, High Risk
SecurityFocus: 8749 - FreeBSD Kernel Readv() Integer Overflow Vulnerability
Secunia: 9926 - FreeBSD "readv()" Integer Overflow Vulnerability, Less Critical
OSVDB: 5988 - FreeBSD readv() Integer Overflow Privilege Escalation
SecurityTracker: 1007869
SecuriTeam: securiteam.com

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 10/06/2003 14:47
Updated: 06/26/2019 16:31
Changes: 10/06/2003 14:47 (69), 06/26/2019 16:31 (1)
Complete: 🔍
Cache ID: 216:FC0:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.