VDB-67543 · CVE-2014-6410 · RHSA-2014:1971

Linux Kernel 3.16.0/3.16.1/3.16.2/3.16.3 ICBs resource management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel 3.16.0/3.16.1/3.16.2/3.16.3. It has been rated as problematic. This vulnerability affects unknown code of the component ICBs Handler. This manipulation causes resource management. This vulnerability appears as CVE-2014-6410. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.16.0/3.16.1/3.16.2/3.16.3 (Operating System). It has been declared as problematic. Affected by this vulnerability is an unknown function of the component ICBs Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability.

The issue has been introduced in 08/03/2014. The weakness was presented 09/15/2014 as confirmed mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is known as CVE-2014-6410 since 09/15/2014. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. Responsible for the vulnerability is the following code:

if (ie->indirectICB.extLength &&
   (nbh = udf_read_ptagged(inode->i_sb, &loc, 0,
            &ident))) {
   if (ident == TAG_IDENT_FE ||
      ident == TAG_IDENT_EFE) {
      memcpy(&iinfo->i_location,
         &loc,
         sizeof(struct kernel_lb_addr));
      brelse(bh);
      brelse(ibh);
      brelse(nbh);
      __udf_read_inode(inode);
   }
   brelse(nbh);
}

The vulnerability was handled as a non-public zero-day exploit for at least 43 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 79876 (CentOS 7 : kernel (CESA-2014:1971)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195640 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2379-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published immediately after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:

if (ie->indirectICB.extLength) {
   brelse(bh);
   brelse(ibh);
   memcpy(&iinfo->i_location, &loc,
          sizeof(struct kernel_lb_addr));
   if (++indirections > UDF_MAX_ICB_NESTING) {
      udf_err(inode->i_sb,
         "too many ICBs in ICB hierarchy"
         " (max %d supported)\n",
         UDF_MAX_ICB_NESTING);
      make_bad_inode(inode);
      return;
   }
   goto reread;
}

The vulnerability is also documented in the databases at X-Force (95963), Tenable (79876), SecurityFocus (BID 69799†) and Vulnerability Center (SBV-46279†). See VDB-67535, VDB-67544, VDB-67545 and VDB-67546 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 79876
Nessus Name: CentOS 7 : kernel (CESA-2014:1971)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 867487
OpenVAS Name: Fedora Update for kernel FEDORA-2014-17283
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: c03aa9f6e1f938618e6db2e23afef0574efeeb65

Timelineinfo

08/03/2014 🔍
09/04/2014 +32 days 🔍
09/04/2014 +0 days 🔍
09/15/2014 +11 days 🔍
09/15/2014 +0 days 🔍
09/15/2014 +0 days 🔍
09/18/2014 +3 days 🔍
09/28/2014 +10 days 🔍
09/29/2014 +1 days 🔍
02/16/2022 +2697 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2014:1971
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-6410 (🔍)
GCVE (CVE): GCVE-0-2014-6410
GCVE (VulDB): GCVE-100-67543

OVAL: 🔍

X-Force: 95963 - Linux Kernel ICBs denial of service, Medium Risk
SecurityFocus: 69799 - Linux Kernel 'fs/udf/inode.c' Local Denial of Service Vulnerability
Vulnerability Center: 46279 - Linux Kernel through 3.16.3 Local DoS via a UDF Filesystem with a Crafted Inode, Medium

See also: 🔍

Entryinfo

Created: 09/18/2014 23:31
Updated: 02/16/2022 03:20
Changes: 09/18/2014 23:31 (81), 06/07/2017 11:08 (1), 02/16/2022 03:06 (5), 02/16/2022 03:13 (1), 02/16/2022 03:20 (2)
Complete: 🔍
Cache ID: 216:16C:103

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