Linux Kernel up to 5.12.0-rc3 f2fs module fs/f2fs/node.c out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel up to 5.12.0-rc3. This affects an unknown part of the file fs/f2fs/node.c of the component f2fs module. Executing a manipulation can lead to out-of-bounds. This vulnerability is registered as CVE-2021-3506. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.12.0-rc3 (Operating System). It has been declared as critical. This vulnerability affects an unknown functionality of the file fs/f2fs/node.c of the component f2fs module. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, and availability.

The weakness was published 04/20/2021. The advisory is available at bugzilla.redhat.com. This vulnerability was named CVE-2021-3506. Technical details are known, but there is no available exploit.

Upgrading to version 5.12.0-rc4 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at mail-archive.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.12.0-rc4
Patch: mail-archive.com

Timelineinfo

04/19/2021 🔍
04/20/2021 +1 days 🔍
04/20/2021 +0 days 🔍
04/23/2021 +3 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2021-3506 (🔍)
GCVE (CVE): GCVE-0-2021-3506
GCVE (VulDB): GCVE-100-173230

Entryinfo

Created: 04/20/2021 07:23
Updated: 04/23/2021 14:45
Changes: 04/20/2021 07:23 (42), 04/23/2021 14:45 (5)
Complete: 🔍
Cache ID: 216::103

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