VDB-317 · XFDB 13343 · BID 8748

FreeBSD prior 4-STABLE, procfs/linprocfs integer coercion

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in FreeBSD. This impacts an unknown function of the component procfs/linprocfs. The manipulation leads to integer coercion. Local access is required to approach this attack. Moreover, an exploit is present. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in FreeBSD (Operating System). This issue affects some unknown functionality of the component procfs/linprocfs. The manipulation with an unknown input leads to a integer coercion vulnerability. Using CWE to declare the problem leads to CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 10/01/2003 by Joost Pol with Pine Digital Security (Website). The advisory is shared at pine.nl. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at pine.nl. It is declared as proof-of-concept.

Upgrading to version 4-STABLE, 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 patching the affected component.

The vulnerability is also documented in the databases at X-Force (13343), SecurityFocus (BID 8748†), OSVDB (5987†), Secunia (SA9927†) and SecurityTracker (ID 1007875†). ftp.freebsd.org is providing further details. The entry VDB-315 is pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: FreeBSD 4-STABLE,
Patch: ftp.FreeBSD.org

Timelineinfo

10/01/2003 🔍
10/02/2003 +1 days 🔍
10/03/2003 +1 days 🔍
10/04/2003 +1 days 🔍
10/04/2003 +0 days 🔍
10/06/2003 +1 days 🔍
01/08/2019 +5573 days 🔍

Sourcesinfo

Product: freebsd.org

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

GCVE (VulDB): GCVE-100-317
X-Force: 13343 - FreeBSD procfs integer overflow/underflow, High Risk
SecurityFocus: 8748 - BSD Kernel ProcFS Handler UIO_Offset Integer Overflow Vulnerability
Secunia: 9927 - FreeBSD procfs and linprocfs Integer Overflow Vulnerabilities, Less Critical
OSVDB: 5987 - FreeBSD procfs / linprocfs Local Overflow DoS
SecurityTracker: 1007875 - FreeBSD Kernel procfs uiomove() Overflow Discloses Sensitive Kernel Memory to Local Users

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

Entryinfo

Created: 10/06/2003 16:30
Updated: 01/08/2019 10:00
Changes: 10/06/2003 16:30 (69), 01/08/2019 10:00 (4)
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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