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.
6.1	$0-$5k	0.00

A vulnerability has been found in Linux Kernel 4.0.3 (Operating System) and classified as critical. This vulnerability affects the function ping_unhash of the file net/ipv4/ping.c of the component Ping Socket. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 05/02/2015 by Wen Xu and wushi with KeenTeam as Bug 1218074 as confirmed bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability was named CVE-2015-3636 since 05/02/2015. The exploitation appears to be difficult. Local access is required to approach this attack. A single authentication is necessary for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 83339 (Fedora 22 : kernel-4.0.2-300.fc22 (2015-7784)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350179 (Amazon Linux Security Advisory for kernel: ALAS-2015-523).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at X-Force (102873) and Tenable (83339). Additional details are provided at seclists.org.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.0.3

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: 7.0
VulDB Meta Temp Score: 6.1

VulDB Base Score: 7.0
VulDB Temp Score: 6.1
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: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

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: 83339
Nessus Name: Fedora 22 : kernel-4.0.2-300.fc22 (2015-7784)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703290
OpenVAS Name: Debian Security Advisory DSA 3290-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

05/02/2015 🔍
05/02/2015 +0 days 🔍
05/04/2015 +2 days 🔍
05/05/2015 +1 days 🔍
05/12/2015 +7 days 🔍
08/05/2015 +85 days 🔍
08/05/2015 +0 days 🔍
08/06/2015 +1 days 🔍
09/13/2015 +38 days 🔍
05/10/2022 +2431 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 1218074
Researcher: Wen Xu, wushi
Organization: KeenTeam
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3636 (🔍)
OVAL: 🔍

X-Force: 102873 - Linux Kernel ping socket privilege escalation
SecurityTracker: 1033186
Vulnerability Center: 52573 - Linux Kernel 2.6.0 through 4.0 Local Privilege Escalation Vulnerability, Medium
SecurityFocus: 74450 - Linux Kernel CVE-2015-3636 Local Privilege Escalation Vulnerability

Misc.: 🔍

Entryinfo

Created: 05/05/2015 09:51
Updated: 05/10/2022 09:21
Changes: 05/05/2015 09:51 (79), 12/16/2017 07:15 (8), 05/10/2022 09:18 (3), 05/10/2022 09:21 (1)
Complete: 🔍

Discussion

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