Linux Kernel up to 2.6.25.8 get_user_pages input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 2.6.25.8. This affects the function get_user_pages. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2008-2372. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 2.6.25.8 (Operating System) and classified as problematic. This issue affects the function get_user_pages. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

The Linux kernel 2.6.24 and 2.6.25 before 2.6.25.9 allows local users to cause a denial of service (memory consumption) via a large number of calls to the get_user_pages function, which lacks a ZERO_PAGE optimization and results in allocation of "useless newly zeroed pages."

The bug was discovered 06/24/2008. The weakness was disclosed 07/02/2008 (Website). It is possible to read the advisory at issues.rpath.com. The identification of this vulnerability is CVE-2008-2372 since 05/21/2008. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 158 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 40007 (openSUSE Security Update : kernel (kernel-67)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165693 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2008:035)).

Upgrading 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 (46451), Tenable (40007), OSVDB (48116†), Secunia (SA30901†) and Vulnerability Center (SBV-19989†). The entries VDB-34127, VDB-43118, VDB-43111 and VDB-43008 are pretty similar. Be aware that VulDB is the high quality source for 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: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 40007
Nessus Name: openSUSE Security Update : kernel (kernel-67)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 870061
OpenVAS Name: Rhino Software Serv-U SITE SET Command Denial Of Service vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/24/2008 🔍
05/21/2008 +118 days 🔍
06/24/2008 +34 days 🔍
06/30/2008 +6 days 🔍
07/02/2008 +2 days 🔍
07/02/2008 +0 days 🔍
07/02/2008 +0 days 🔍
11/13/2008 +134 days 🔍
07/21/2009 +250 days 🔍
03/17/2015 +2065 days 🔍
08/20/2019 +1617 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: issues.rpath.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-2372 (🔍)
GCVE (CVE): GCVE-0-2008-2372
GCVE (VulDB): GCVE-100-43007

OVAL: 🔍

X-Force: 46451
Secunia: 30901
OSVDB: 48116 - CVE-2008-2372 - Linux - Kernel - Denial-Of-Service Issue
Vulnerability Center: 19989 - Linux Kernel 2.6.24 and 2.6.25-2.6.25.8 get_user_pages Function Local Denial of Service, Medium

See also: 🔍

Entryinfo

Created: 03/17/2015 12:19
Updated: 08/20/2019 16:32
Changes: 03/17/2015 12:19 (71), 08/20/2019 16:32 (8)
Complete: 🔍
Cache ID: 216::103

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