VDB-162748 · CVE-2020-6108 · GCVE-0-2020-6108

F2fs-Tools F2fs.Fsck 1.13 f2fs Filesystem fsck_chk_orphan_node heap-based overflow

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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in F2fs-Tools F2fs.Fsck 1.13. This vulnerability affects the function fsck_chk_orphan_node of the component f2fs Filesystem Handler. Executing a manipulation can lead to heap-based overflow. This vulnerability appears as CVE-2020-6108. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in F2fs-Tools F2fs.Fsck 1.13. This vulnerability affects the function fsck_chk_orphan_node of the component f2fs Filesystem Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 10/15/2020. The advisory is shared for download at talosintelligence.com. This vulnerability was named CVE-2020-6108. There are known technical details, but no exploit is available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

F2fs-Tools

Name

F2fs.Fsck

Version

1.13

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2020 🔍
10/15/2020 +281 days 🔍
10/15/2020 +0 days 🔍
11/20/2020 +36 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2020-6108 (🔍)
GCVE (CVE): GCVE-0-2020-6108
GCVE (VulDB): GCVE-100-162748

Entryinfo

Created: 10/15/2020 22:56
Updated: 11/20/2020 12:07
Changes: 10/15/2020 22:56 (37), 11/19/2020 08:05 (4), 11/20/2020 12:04 (2), 11/20/2020 12:07 (14)
Complete: 🔍
Cache ID: 216::103