Linux Kernel xfs_da3_fixhashpath resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel. This issue affects the function xfs_da3_fixhashpath. Performing a manipulation results in resource management. This vulnerability is identified as CVE-2014-7283. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (version now known). It has been classified as problematic. This affects the function xfs_da3_fixhashpath. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability.

The weakness was released 10/01/2014 by Hannes Frederic Sowa as Bug 1148777 as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2014-7283 since 10/01/2014. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The reason for this vulnerability is this part of code: 

if (be32_to_cpu(btree->hashval) == lasthash)

The vulnerability scanner Nessus provides a plugin with the ID 79684 (RHEL 6 : kernel-rt (RHSA-2014:1943)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195509 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2226-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The vulnerability will be addressed with the following lines of code:

if (be32_to_cpu(btree[blk->index].hashval) == lasthash)

The vulnerability is also documented in the databases at X-Force (96836), Tenable (79684), SecurityFocus (BID 70261†) and Vulnerability Center (SBV-46426†). Further details are available at seclists.org. Entry connected to this vulnerability is available at VDB-12694. Statistical analysis made it clear that VulDB provides the best quality 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: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 79684
Nessus Name: RHEL 6 : kernel-rt (RHSA-2014:1943)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: c88547a8119e3b581318ab65e9b72f27f23e641d

Timelineinfo

10/01/2014 🔍
10/01/2014 +0 days 🔍
10/07/2014 +6 days 🔍
10/07/2014 +0 days 🔍
10/08/2014 +1 days 🔍
10/13/2014 +5 days 🔍
10/14/2014 +1 days 🔍
12/03/2014 +50 days 🔍
02/21/2022 +2637 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 1148777
Researcher: Hannes Frederic Sowa
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-7283 (🔍)
GCVE (CVE): GCVE-0-2014-7283
GCVE (VulDB): GCVE-100-67731
X-Force: 96836 - Linux Kernel xfs_da3_fixhashpath() denial of service, Medium Risk
SecurityFocus: 70261 - Linux Kernel 'xfs_da_btree.c' Local Denial of Service Vulnerability
Vulnerability Center: 46426 - Linux Kernel before 3.14.2 Local DoS due to Hash Collisions, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 10/08/2014 11:58
Updated: 02/21/2022 10:00
Changes: 10/08/2014 11:58 (74), 06/08/2017 10:24 (4), 02/21/2022 09:59 (4), 02/21/2022 10:00 (1)
Complete: 🔍
Cache ID: 216::103

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