Linux Kernel 2.6.16.9 information disclosure

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.
7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel 2.6.16.9. It has been declared as critical. This issue affects some unknown processing. Such manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2010-2943. Moreover, an exploit is present. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.16.9 (Operating System). It has been rated as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, and integrity. CVE summarizes:

The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.

The issue has been introduced in 03/20/2006. The weakness was disclosed 09/30/2010 as confirmed git commit (GIT Repository). The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2010-2943. The attack may be launched remotely. Required for exploitation is a simple authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1592.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1655 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 52597 (SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 4039 / 4042 / 4043)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165554 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2011:012)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at Exploit-DB (15155), Tenable (52597), SecurityFocus (BID 42527†) and Vulnerability Center (SBV-27552†). The entries VDB-55675, VDB-55566, VDB-55562 and VDB-55561 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.1
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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

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: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 52597
Nessus Name: SuSE 11.1 Security Update : Linux kernel (SAT Patch Numbers 4039 / 4042 / 4043)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 880648
OpenVAS Name: CentOS Update for kernel CESA-2010:0723 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 1920779e67cbf5ea8afef317777c5bf2b8096188

Timelineinfo

03/20/2006 🔍
06/17/2010 +1550 days 🔍
08/04/2010 +47 days 🔍
09/30/2010 +57 days 🔍
09/30/2010 +0 days 🔍
09/30/2010 +0 days 🔍
10/11/2010 +11 days 🔍
03/09/2011 +149 days 🔍
03/19/2015 +1471 days 🔍
11/25/2024 +3539 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-1041-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-2943 (🔍)
GCVE (CVE): GCVE-0-2010-2943
GCVE (VulDB): GCVE-100-54872

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 42527 - XFS Deleted Inode Local Information Disclosure Vulnerability
Secunia: 42758
Vulnerability Center: 27552 - Linux kernel Before 2.6.35 Remote Information Disclosure Vulnerability, High

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

Entryinfo

Created: 03/19/2015 14:37
Updated: 11/25/2024 02:02
Changes: 03/19/2015 14:37 (69), 03/07/2017 09:43 (12), 09/25/2021 19:59 (7), 09/25/2021 20:07 (11), 09/25/2021 20:15 (1), 11/25/2024 02:02 (15)
Complete: 🔍
Cache ID: 216:D69:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!