fsck.f2fs 1.12.0 File System Check buffer size

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

A vulnerability, which was classified as critical, was found in fsck.f2fs 1.12.0. This affects an unknown functionality of the component File System Check Handler. The manipulation with an unknown input leads to a buffer size vulnerability. CWE is classifying the issue as CWE-131. The product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An exploitable code execution vulnerability exists in the file system checking functionality of fsck.f2fs 1.12.0. A specially crafted f2fs file can cause a logic flaw and out-of-bounds heap operations, resulting in code execution. An attacker can provide a malicious file to trigger this vulnerability.

The weakness was disclosed 08/10/2020 (Website). It is possible to read the advisory at talosintelligence.com. This vulnerability is uniquely identified as CVE-2020-6070 since 01/07/2020. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

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

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer size
CWE: CWE-131 / CWE-120 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2020 🔍
08/10/2020 +216 days 🔍
08/10/2020 +0 days 🔍
08/10/2020 +0 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2020-6070 (🔍)

Entryinfo

Created: 08/10/2020 22:02
Updated: 08/10/2020 22:07
Changes: 08/10/2020 22:02 (36), 08/10/2020 22:07 (17)
Complete: 🔍

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