Linux Kernel up to 2.6.24 copy_from_user_mmap_sem input validation

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the function copy_from_user_mmap_sem. Performing a manipulation results in input validation. This vulnerability was named CVE-2008-0010. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System). It has been classified as problematic. This affects the function copy_from_user_mmap_sem. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality. The summary by CVE is:

The copy_from_user_mmap_sem function in fs/splice.c in the Linux kernel 2.6.22 through 2.6.24 does not validate a certain userspace pointer before dereference, which allow local users to read from arbitrary kernel memory locations.

The issue has been introduced in 07/08/2007. The weakness was presented 02/12/2008 by Wojciech Purczynski with iSEC Security Research (Website). It is possible to read the advisory at vupen.com. This vulnerability is uniquely identified as CVE-2008-0010 since 12/03/2007. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 219 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 31028 (Debian DSA-1494-2 : linux-2.6 - missing access checks), 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 115715 (SuSE Linux Multiple Memory Access Vulnerabilities).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (5093), Tenable (31028), SecurityFocus (BID 27796†) and Secunia (SA28835†). See VDB-40989, VDB-40988 and VDB-40982 for similar entries. 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: 4.0
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.0
VulDB Temp Score: 3.6
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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 31028
Nessus Name: Debian DSA-1494-2 : linux-2.6 - missing access checks
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60369
OpenVAS Name: Debian Security Advisory DSA 1494-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/08/2007 🔍
12/03/2007 +148 days 🔍
02/08/2008 +67 days 🔍
02/11/2008 +3 days 🔍
02/12/2008 +1 days 🔍
02/12/2008 +0 days 🔍
02/12/2008 +0 days 🔍
03/16/2015 +2589 days 🔍
10/17/2024 +3503 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: vupen.com⛔
Researcher: Wojciech Purczynski
Organization: iSEC Security Research
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-0010 (🔍)
GCVE (CVE): GCVE-0-2008-0010
GCVE (VulDB): GCVE-100-40983

OVAL: 🔍

SecurityFocus: 27796 - Linux Kernel Prior to 2.6.24.1 'copy_from_user_mmap_sem()' Memory Access Vulnerability
Secunia: 28835 - Linux Kernel "vmsplice()" System Call Vulnerabilities, Less Critical
Vupen: ADV-2008-0487

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

Entryinfo

Created: 03/16/2015 13:43
Updated: 10/17/2024 02:38
Changes: 03/16/2015 13:43 (66), 04/21/2019 09:26 (16), 10/17/2024 02:38 (17)
Complete: 🔍
Cache ID: 216::103

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