Linux Kernel 3.8.0/3.8.1/3.8.2/3.8.3 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.
4.0	$0-$5k	0.00

A vulnerability, which was classified as problematic, has been found in Linux Kernel 3.8.0/3.8.1/3.8.2/3.8.3 (Operating System). Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality. CVE summarizes:

net/bridge/br_mdb.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel memory via a crafted application.

The issue has been introduced in 02/18/2013. The weakness was presented 03/22/2013 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2013-2636 since 03/21/2013. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 32 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 65664 (Fedora 18 : kernel-3.8.4-202.fc18 (2013-4240)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (83142), Tenable (65664), SecurityFocus (BID 58597†) and Vulnerability Center (SBV-40855†). See VDB-8069 and VDB-63846 for similar entries.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
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: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 65664
Nessus Name: Fedora 18 : kernel-3.8.4-202.fc18 (2013-4240)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: c085c49920b2f900ba716b4ca1c1a55ece9872cc

Timelineinfo

02/18/2013 🔍
03/20/2013 +30 days 🔍
03/20/2013 +0 days 🔍
03/21/2013 +1 days 🔍
03/22/2013 +1 days 🔍
03/22/2013 +0 days 🔍
08/06/2013 +137 days 🔍
03/24/2015 +595 days 🔍
01/01/2022 +2475 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: c085c49920b2f900ba716b4ca1c1a55ece9872cc
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-2636 (🔍)
X-Force: 83142
SecurityFocus: 58597 - Linux Kernel Netlink Interface Multiple Information Disclosure Vulnerabilities
Vulnerability Center: 40855 - Linux Kernel Before 3.8.4 Local Leakage of Information via Crafted Application (CVE-2013-2636), Low

See also: 🔍

Entryinfo

Created: 03/24/2015 12:22 PM
Updated: 01/01/2022 04:08 PM
Changes: 03/24/2015 12:22 PM (59), 05/07/2017 11:46 AM (6), 01/01/2022 04:02 PM (5), 01/01/2022 04:08 PM (1)
Complete: 🔍
Cache ID: 18:A2C:40