Linux Kernel 2.6.21.1 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel 2.6.21.1. This vulnerability affects unknown code. This manipulation causes denial of service. This vulnerability is registered as CVE-2007-2878. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel 2.6.21.1 (Operating System) and classified as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

The VFAT compat ioctls in the Linux kernel before 2.6.21.2, when run on a 64-bit system, allow local users to corrupt a kernel_dirent struct and cause a denial of service (system crash) via unknown vectors.

The bug was discovered 05/23/2007. The weakness was published 05/08/2007 (Website). The advisory is shared at kernel.org. This vulnerability is known as CVE-2007-2878 since 05/29/2007. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 30126 (Debian DSA-1479-1 : linux-2.6 - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156038 (Oracle Enterprise Linux Update for Kernel (ELSA-2007-0705)).

Upgrading to version 2.6.21.2 eliminates this vulnerability. A possible mitigation has been published 10 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (34669), Exploit-DB (30080), Tenable (30126), SecurityFocus (BID 24134†) and OSVDB (35926†). Similar entries are available at VDB-38283, VDB-37214 and VDB-40214. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.2
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 30126
Nessus Name: Debian DSA-1479-1 : linux-2.6 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 840134
OpenVAS Name: Ubuntu Update for nss USN-2159-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Kernel 2.6.21.2

Timelineinfo

04/26/2007 🔍
05/08/2007 +12 days 🔍
05/23/2007 +14 days 🔍
05/23/2007 +0 days 🔍
05/24/2007 +1 days 🔍
05/29/2007 +5 days 🔍
05/29/2007 +0 days 🔍
06/01/2007 +3 days 🔍
06/01/2007 +0 days 🔍
09/18/2007 +108 days 🔍
01/29/2008 +133 days 🔍
01/30/2008 +1 days 🔍
03/15/2015 +2601 days 🔍
12/22/2024 +3570 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-2878 (🔍)
GCVE (CVE): GCVE-0-2007-2878
GCVE (VulDB): GCVE-100-36985

OVAL: 🔍

X-Force: 34669
SecurityFocus: 24134 - Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
Secunia: 25505
OSVDB: 35926 - Linux Kernel VFAT Compat IOCTLs Unspecified Local DoS
Vulnerability Center: 16096 - Linux Kernel < 2.6.21.2 VFAT Compat ioctls Local Denial of Service, Medium
Vupen: ADV-2007-2023

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

Entryinfo

Created: 03/15/2015 15:58
Updated: 12/22/2024 11:28
Changes: 03/15/2015 15:58 (90), 07/26/2019 06:42 (2), 12/22/2024 11:28 (19)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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