Linux Kernel up to 4.9.8 ext4 Image fs/ext4/super.c ext4_fill_super out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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3.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel up to 4.9.8. This affects the function ext4_fill_super of the file fs/ext4/super.c of the component ext4 Image Handler. Performing a manipulation results in out-of-bounds. This vulnerability is known as CVE-2016-10208. The attack may be carried out on the physical device. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 4.9.8 (Operating System). This affects the function ext4_fill_super of the file fs/ext4/super.c of the component ext4 Image Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. The summary by CVE is:

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image.

The bug was discovered 11/15/2016. The weakness was published 02/06/2017 by Ralf Spenneberg (Website). It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2016-10208 since 02/04/2017. Attacking locally is a requirement. A authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 83 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 97778 (Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3234-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351446 (Amazon Linux Security Advisory for kernel: ALAC2012-2018-012).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97778) and SecurityFocus (BID 94354†). Similar entries are available at VDB-96560, VDB-96561, VDB-96562 and VDB-96563. 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: 3.2
VulDB Meta Temp Score: 3.1

VulDB Base Score: 2.1
VulDB Temp Score: 2.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97778
Nessus Name: Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3234-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for Kernel openSUSE-SU-2017:0906-1 (Kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

11/15/2016 🔍
11/16/2016 +1 days 🔍
02/04/2017 +80 days 🔍
02/06/2017 +2 days 🔍
02/06/2017 +0 days 🔍
02/06/2017 +0 days 🔍
03/15/2017 +37 days 🔍
03/16/2017 +1 days 🔍
11/11/2022 +2066 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2017:1297
Researcher: Ralf Spenneberg
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10208 (🔍)
GCVE (CVE): GCVE-0-2016-10208
GCVE (VulDB): GCVE-100-96555
SecurityFocus: 94354 - Linux Kernel 'EXT4 image' Local Denial of Service Vulnerability
OSVDB: - CVE-2016-10208 - Linux - Out-of-Bounds Read Issue

See also: 🔍

Entryinfo

Created: 02/06/2017 19:25
Updated: 11/11/2022 16:17
Changes: 02/06/2017 19:25 (77), 08/11/2020 09:28 (9), 11/11/2022 16:17 (4)
Complete: 🔍
Cache ID: 216:AA1:103

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