Linux Kernel 2.6.16.9 futex_lock_pi input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel 2.6.16.9. This vulnerability affects the function futex_lock_pi. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2010-0623. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.16.9 (Operating System). It has been rated as critical. This issue affects the function futex_lock_pi. 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 futex_lock_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which allows local users to cause a denial of service (OOPS) via vectors involving an unmount of an ext3 filesystem.

The issue has been introduced in 03/20/2006. The weakness was disclosed 02/15/2010 (Website). The advisory is shared at kernel.org. The identification of this vulnerability is CVE-2010-0623. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1428 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 48181 (Mandriva Linux Security Advisory : kernel (MDVSA-2010:088)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166481 (OpenSuSE Security Update for update kernel to 3.0 (openSUSE-SU-2013:0927-1)).

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 (48181) and Vulnerability Center (SBV-25129†). The entries VDB-51866, VDB-51856, VDB-50525 and VDB-53100 are pretty similar. 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: 6.2

VulDB Base Score: 6.2
VulDB Temp Score: 6.2
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: 48181
Nessus Name: Mandriva Linux Security Advisory : kernel (MDVSA-2010:088)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 862250
OpenVAS Name: Fedora Update for kernel FEDORA-2010-10880
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: 🔍

Timelineinfo

03/20/2006 🔍
02/11/2010 +1423 days 🔍
02/15/2010 +4 days 🔍
02/15/2010 +0 days 🔍
02/15/2010 +0 days 🔍
03/23/2010 +36 days 🔍
03/18/2015 +1821 days 🔍
04/30/2026 +4061 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-0623 (🔍)
GCVE (CVE): GCVE-0-2010-0623
GCVE (VulDB): GCVE-100-51857

OVAL: 🔍

Vulnerability Center: 25129 - Linux Kernel Prior to 2.6.33-rc7 Local DoS Vulnerability via ext3 Filesystem Unmount, Low

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 04/30/2026 22:56
Changes: 03/18/2015 15:15 (57), 02/22/2017 10:41 (9), 09/02/2021 10:02 (3), 09/02/2021 10:06 (1), 04/30/2026 22:56 (15)
Complete: 🔍
Cache ID: 216::103

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

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