VDB-28092 · CVE-2005-4783 · OSVDB 20729

NetBSD 1.6/2.0/2.0.3/2.1 kernfs_vnops.c information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in NetBSD 1.6/2.0/2.0.3/2.1. This impacts an unknown function of the file kernfs_vnops.c. The manipulation results in information disclosure. This vulnerability is reported as CVE-2005-4783. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in NetBSD 1.6/2.0/2.0.3/2.1 (Operating System). Affected is an unknown functionality of the file kernfs_vnops.c. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

kernfs_xread in kernfs_vnops.c in NetBSD before 20050831 does not check for a negative offset when reading the message buffer, which allows local users to read arbitrary kernel memory.

The weakness was disclosed 12/31/2005 (Website). The advisory is shared for download at mail-index.netbsd.org. This vulnerability is traded as CVE-2005-4783 since 04/13/2006. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at OSVDB (20729†) and SecurityTracker (ID 1015132†). The entries VDB-28088 and VDB-28009 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/01/2005 🔍
11/10/2005 +9 days 🔍
12/31/2005 +50 days 🔍
12/31/2005 +0 days 🔍
04/13/2006 +103 days 🔍
03/12/2015 +3255 days 🔍
07/16/2018 +1222 days 🔍

Sourcesinfo

Advisory: mail-index.netbsd.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-4783 (🔍)
GCVE (CVE): GCVE-0-2005-4783
GCVE (VulDB): GCVE-100-28092
OSVDB: 20729 - NetBSD Message Buffer Negative Offset Arbitrary Kernel Memory Access
SecurityTracker: 1015132

See also: 🔍

Entryinfo

Created: 03/12/2015 11:11
Updated: 07/16/2018 09:23
Changes: 03/12/2015 11:11 (48), 07/16/2018 09:23 (7)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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