Linux Kernel 2.6.23 read_mapping_page input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability classified as critical has been found in Linux Kernel 2.6.23 (Operating System). Affected is the function read_mapping_page. 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 availability. CVE summarizes:

The hfsplus_block_allocate function in fs/hfsplus/bitmap.c in the Linux kernel before 2.6.28-rc1 does not check a certain return value from the read_mapping_page function before calling kmap, which allows attackers to cause a denial of service (system crash) via a crafted hfsplus filesystem image.

The bug was discovered 10/15/2008. The weakness was shared 11/05/2008 by Eric Sesterhenn (Website). The advisory is available at openwall.com. This vulnerability is traded as CVE-2008-4934 since 11/05/2008. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 393 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 43727 (CentOS 4 : kernel (CESA-2009:0014)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 117200 (CentOS Security Update for kernel (CESA-2009:0014)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (46327) and Tenable (43727). The entries 45625, 45255 and 44873 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 43727
Nessus Name: CentOS 4 : kernel (CESA-2009:0014)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 62843
OpenVAS Name: Debian Security Advisory DSA 1681-1 (linux-2.6.24)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

10/09/2007 🔍
10/15/2008 +372 days 🔍
10/15/2008 +0 days 🔍
11/04/2008 +20 days 🔍
11/04/2008 +0 days 🔍
11/05/2008 +1 days 🔍
11/05/2008 +0 days 🔍
11/05/2008 +0 days 🔍
12/07/2008 +32 days 🔍
01/15/2009 +39 days 🔍
01/06/2010 +356 days 🔍
03/17/2015 +1896 days 🔍
08/21/2019 +1618 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Researcher: Eric Sesterhenn
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-4934 (🔍)
OVAL: 🔍

X-Force: 46327
Vulnerability Center: 20142 - Linux kernel < 2.6.28-rc1 hfsplus_block_allocate Function Allows Local DoS, Medium
SecurityFocus: 32096 - Linux Kernel 'hfsplus_block_allocate()' Local Denial of Service Vulnerability
Secunia: 32510 - Linux Kernel Multiple Vulnerabilities, Less Critical
OSVDB: 49707 - CVE-2008-4934 - Linux - Kernel - Denial-Of-Service Issue

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Entryinfo

Created: 03/17/2015 16:11
Updated: 08/21/2019 14:27
Changes: 03/17/2015 16:11 (82), 08/21/2019 14:27 (6)
Complete: 🔍

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