Linux Kernel up to 2.6.9 direct-io.c memory leak

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 2.6.9. This issue affects some unknown processing of the file direct-io.c. This manipulation causes memory leak. This vulnerability appears as CVE-2004-2660. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 2.6.9 (Operating System). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the file direct-io.c. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

Memory leak in direct-io.c in Linux kernel 2.6.x before 2.6.10 allows local users to cause a denial of service (memory consumption) via certain O_DIRECT (direct IO) write requests.

The issue has been introduced in 12/18/2003. The weakness was presented 12/31/2004 (Website). The advisory is shared at kernel.org. This vulnerability is known as CVE-2004-2660 since 05/26/2006. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 379 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 22726 (Debian DSA-1184-2 : kernel-source-2.6.8 - several vulnerabilities), 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 156246 (Oracle Enterprise Linux Update for Kernel (ELSA-2006:0617, ELSA-2006:0689)).

Upgrading to version 2.6.x eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (22726), SecurityFocus (BID 19665†), OSVDB (26552†), Secunia (SA21605†) and Vulnerability Center (SBV-12611†). See VDB-2256, VDB-2254, VDB-2255 and VDB-2257 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: Memory leak
CWE: CWE-401 / CWE-404
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: 22726
Nessus Name: Debian DSA-1184-2 : kernel-source-2.6.8 - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57408
OpenVAS Name: Debian Security Advisory DSA 1184-1 (kernel-source-2.6.8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 2.6.x

Timelineinfo

12/18/2003 🔍
12/31/2004 +379 days 🔍
12/31/2004 +0 days 🔍
12/31/2004 +0 days 🔍
05/26/2006 +511 days 🔍
08/22/2006 +88 days 🔍
08/23/2006 +1 days 🔍
09/04/2006 +12 days 🔍
10/14/2006 +40 days 🔍
03/10/2015 +3069 days 🔍
06/24/2019 +1567 days 🔍

Sourcesinfo

Vendor: kernel.org

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

CVE: CVE-2004-2660 (🔍)
GCVE (CVE): GCVE-0-2004-2660
GCVE (VulDB): GCVE-100-23533

OVAL: 🔍

SecurityFocus: 19665 - Linux Kernel Direct-IO.C Local Denial of Service Vulnerability
Secunia: 21605 - Red Hat update for kernel, Moderately Critical
OSVDB: 26552 - CVE-2004-2660 - Linux - Denial of Service Issue
Vulnerability Center: 12611 - Linux Kernel Local Denial of Service via O_DIRECT Write Requests, Low

See also: 🔍

Entryinfo

Created: 03/10/2015 12:14
Updated: 06/24/2019 17:20
Changes: 03/10/2015 12:14 (82), 06/24/2019 17:20 (2)
Complete: 🔍
Cache ID: 216::103

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