Linux Kernel 3.15.1 aio_read_events_ring array index

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-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel 3.15.1. Affected is the function aio_read_events_ring. The manipulation leads to array index. This vulnerability is documented as CVE-2014-0206. There is not any exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel 3.15.1 (Operating System). It has been rated as problematic. This issue affects the function aio_read_events_ring. The manipulation with an unknown input leads to a array index vulnerability. Using CWE to declare the problem leads to CWE-129. The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. Impacted is confidentiality. The summary by CVE is:

Array index error in the aio_read_events_ring function in fs/aio.c in the Linux kernel through 3.15.1 allows local users to obtain sensitive information from kernel memory via a large head value.

The weakness was released 06/25/2014 by Mateusz Guzik as Linux kernel: kernel memory disclosure in io_getevents() as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2014-0206 since 12/03/2013. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 78311 (Amazon Linux AMI : kernel (ALAS-2014-368)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350361 (Amazon Linux Security Advisory for kernel: ALAS-2014-368).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (93944), Tenable (78311), SecurityFocus (BID 68176†), Secunia (SA59278†) and SecurityTracker (ID 1030479†). Entries connected to this vulnerability are available at VDB-13585, VDB-43527 and VDB-65956. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Array index
CWE: CWE-129 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 78311
Nessus Name: Amazon Linux AMI : kernel (ALAS-2014-368)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 800909
OpenVAS Name: Fedora Update for kernel FEDORA-2015-5024
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

12/03/2013 🔍
06/24/2014 +203 days 🔍
06/24/2014 +0 days 🔍
06/25/2014 +1 days 🔍
06/25/2014 +0 days 🔍
06/26/2014 +1 days 🔍
06/27/2014 +1 days 🔍
06/29/2014 +2 days 🔍
10/12/2014 +105 days 🔍
03/17/2015 +156 days 🔍
08/09/2021 +2337 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Linux kernel: kernel memory disclosure in io_getevents()
Researcher: Mateusz Guzik
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0206 (🔍)
GCVE (CVE): GCVE-0-2014-0206
GCVE (VulDB): GCVE-100-47321

OVAL: 🔍

X-Force: 93944 - Linux Kernel aio_read_events_ring() information disclosure, Medium Risk
SecurityFocus: 68176 - Linux Kernel '/fs/aio.c' Local Information Disclosure Vulnerability
Secunia: 59278 - Linux Kernel "aio_read_events_ring()" Information Disclosure Vulnerability, Not Critical
SecurityTracker: 1030479 - Linux Kernel aio_read_events_ring() Bugs Let Local Users Obtain Kernel Memory
Vulnerability Center: 45151 - Linux Kernel Local Information Disclosure Vulnerability in aio_read_events_ring(), Low

See also: 🔍

Entryinfo

Created: 03/17/2015 23:38
Updated: 08/09/2021 08:51
Changes: 03/17/2015 23:38 (79), 05/31/2017 09:15 (11), 08/09/2021 08:51 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!