Linux Kernel up to 2.6.15.4 denial of service

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.
3.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 2.6.15.4. It has been declared as problematic. Affected is an unknown function. The manipulation results in denial of service. This vulnerability was named CVE-2006-0555. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 2.6.15.4 (Operating System). Affected is some unknown processing. 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. CVE summarizes:

The Linux Kernel before 2.6.15.5 allows local users to cause a denial of service (NFS client panic) via unknown attack vectors related to the use of O_DIRECT (direct I/O).

The bug was discovered 03/01/2006. The weakness was presented 03/06/2006 by ERNE (Website). The advisory is shared for download at vupen.com. This vulnerability is traded as CVE-2006-0555 since 02/06/2006. 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 neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 20997 (Fedora Core 4 : kernel-2.6.15-1.1833_FC4 (2006-131)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115337 (Linux Kernel Multiple Security Vulnerabilities).

Upgrading to version 2.6.15.5 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (25000), Tenable (20997), SecurityFocus (BID 16922†), OSVDB (23605†) and Secunia (SA19083†). See VDB-2071, VDB-2070, VDB-30128 and VDB-29314 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 20997
Nessus Name: Fedora Core 4 : kernel-2.6.15-1.1833_FC4 (2006-131)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57028
OpenVAS Name: Debian Security Advisory DSA 1103-1 (kernel-source-2.6.8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 2.6.15.5

Timelineinfo

02/06/2006 🔍
03/01/2006 +23 days 🔍
03/01/2006 +0 days 🔍
03/02/2006 +1 days 🔍
03/02/2006 +0 days 🔍
03/06/2006 +4 days 🔍
03/06/2006 +0 days 🔍
03/06/2006 +0 days 🔍
03/12/2006 +6 days 🔍
03/12/2015 +3287 days 🔍
06/15/2019 +1556 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: vupen.com⛔
Researcher: ERNE
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-0555 (🔍)
GCVE (CVE): GCVE-0-2006-0555
GCVE (VulDB): GCVE-100-29028

OVAL: 🔍

X-Force: 25000
SecurityFocus: 16922 - Linux Kernel NFS Client Denial of Service Vulnerability
Secunia: 19083
OSVDB: 23605 - CVE-2006-0555 - Linux - Denial of Service Issue
Vulnerability Center: 10630 - Linux Kernel Local DoS via O_DIRECT, Medium
Vupen: ADV-2006-0804

See also: 🔍

Entryinfo

Created: 03/12/2015 12:19
Updated: 06/15/2019 11:46
Changes: 03/12/2015 12:19 (76), 06/15/2019 11:46 (8)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!