Linux Kernel up to 2.6.20.21 access control

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel. The affected element is an unknown function. Such manipulation leads to access control. This vulnerability is traded as CVE-2008-3527. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System). It has been rated as problematic. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

arch/i386/kernel/sysenter.c in the Virtual Dynamic Shared Objects (vDSO) implementation in the Linux kernel before 2.6.21 does not properly check boundaries, which allows local users to gain privileges or cause a denial of service via unspecified vectors, related to the install_special_mapping, syscall, and syscall32_nopage functions.

The bug was discovered 08/27/2008. The weakness was shared 11/05/2008 as Bug 460251 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is handled as CVE-2008-3527 since 08/07/2008. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 70 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 35174 (Debian DSA-1687-1 : linux-2.6 - denial of service/privilege escalation), 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 117213 (CentOS Security Update for kernel (CESA-2008:0957)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (46451), Tenable (35174), SecurityFocus (BID 31634†), OSVDB (50248†) and Secunia (SA32485†). The entries VDB-34127, VDB-43717, VDB-43007 and VDB-44544 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
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: Access control
CWE: CWE-264
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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Nessus ID: 35174
Nessus Name: Debian DSA-1687-1 : linux-2.6 - denial of service/privilege escalation
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 62957
OpenVAS Name: Debian Security Advisory DSA 1687-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

08/07/2008 🔍
08/27/2008 +20 days 🔍
10/08/2008 +42 days 🔍
11/04/2008 +27 days 🔍
11/04/2008 +0 days 🔍
11/05/2008 +1 days 🔍
11/05/2008 +0 days 🔍
11/05/2008 +0 days 🔍
12/15/2008 +40 days 🔍
12/16/2008 +1 days 🔍
03/17/2015 +2282 days 🔍
08/20/2019 +1617 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 460251
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-3527 (🔍)
GCVE (CVE): GCVE-0-2008-3527
GCVE (VulDB): GCVE-100-44864

OVAL: 🔍

X-Force: 46451
SecurityFocus: 31634 - Linux Kernel SCTP INIT-ACK AUTH Extension Remote Denial of Service Vulnerability
Secunia: 32485
OSVDB: 50248 - CVE-2008-3527 - Linux - Privilege Escalation Issue
SecurityTracker: 1021137
Vulnerability Center: 19933 - Linux Kernel Virtual Dynamic Shared Objects Local Privilege Escalation Vulnerability, High

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/20/2019 11:55
Changes: 03/17/2015 16:11 (77), 08/20/2019 11:55 (12)
Complete: 🔍
Cache ID: 216::103

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