Linux Kernel 2.6.16.9 rs_ioctl 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 identified as problematic has been detected in Linux Kernel 2.6.16.9. Affected by this vulnerability is the function rs_ioctl. This manipulation causes information disclosure. This vulnerability is handled as CVE-2010-4076. Additionally, an exploit exists.

Detailsinfo

A vulnerability has been found in Linux Kernel 2.6.16.9 (Operating System) and classified as problematic. Affected by this vulnerability is the function rs_ioctl. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

The rs_ioctl function in drivers/char/amiserial.c in the Linux kernel 2.6.36.1 and earlier does not properly initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

The issue has been introduced in 03/20/2006. The weakness was released 11/29/2010 by Dan Rosenberg as Bug 648661 as not defined bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2010-4076 since 10/25/2010. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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 1715 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 55762 (Ubuntu 10.10 : linux vulnerabilities (USN-1183-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu 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)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (55762), SecurityFocus (BID 45059†) and Vulnerability Center (SBV-30314†). Entries connected to this vulnerability are available at VDB-55675, VDB-55566, VDB-55562 and VDB-55560. 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: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55762
Nessus Name: Ubuntu 10.10 : linux vulnerabilities (USN-1183-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 850163
OpenVAS Name: SuSE Update for kernel SUSE-SA:2011:017
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: d281da7ff6f70efca0553c288bb883e8605b3862

Timelineinfo

03/20/2006 🔍
10/06/2010 +1661 days 🔍
10/25/2010 +19 days 🔍
11/25/2010 +31 days 🔍
11/29/2010 +4 days 🔍
11/29/2010 +0 days 🔍
03/13/2011 +104 days 🔍
08/04/2011 +144 days 🔍
03/19/2015 +1323 days 🔍
07/01/2024 +3392 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 648661
Researcher: Dan Rosenberg
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-4076 (🔍)
GCVE (CVE): GCVE-0-2010-4076
GCVE (VulDB): GCVE-100-55561

OVAL: 🔍

SecurityFocus: 45059 - Linux Kernel TIOCGICOUNT CVE-2010-4077 Information Disclosure Vulnerability
Vulnerability Center: 30314 - Linux Kernel <=2.6.36.1 Local Information Disclosure Vulnerability via a TIOCGICOUNT ioctl Call, Low

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

Entryinfo

Created: 03/19/2015 14:37
Updated: 07/01/2024 13:36
Changes: 03/19/2015 14:37 (66), 03/19/2017 07:34 (15), 10/05/2021 20:57 (4), 10/05/2021 21:04 (1), 07/01/2024 13:36 (15)
Complete: 🔍
Cache ID: 216::103

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

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