cryptosetup LUKS Header data authenticity

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

Summaryinfo

A vulnerability categorized as problematic has been discovered in cryptosetup. Impacted is an unknown function of the component LUKS Header Handler. Executing a manipulation can lead to data authenticity. The identification of this vulnerability is CVE-2021-4122. The physical device can be targeted for the attack. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in cryptosetup (affected version unknown). It has been declared as problematic. This vulnerability affects an unknown functionality of the component LUKS Header Handler. The manipulation with an unknown input leads to a data authenticity vulnerability. The CWE definition for the vulnerability is CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. As an impact it is known to affect confidentiality. CVE summarizes:

It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that medium.

The weakness was shared 08/25/2022 as 0113ac2d889c5322659ad0596d4cfc6da53e356c. The advisory is shared for download at gitlab.com. This vulnerability was named CVE-2021-4122 since 12/15/2021. There are neither technical details nor an exploit publicly available.

Applying the patch 0113ac2d889c5322659ad0596d4cfc6da53e356c is able to eliminate this problem. The bugfix is ready for download at gitlab.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.1

VulDB Base Score: 2.0
VulDB Temp Score: 1.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Data authenticity
CWE: CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Partially

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 0113ac2d889c5322659ad0596d4cfc6da53e356c

Timelineinfo

12/15/2021 🔍
08/25/2022 +252 days 🔍
08/25/2022 +0 days 🔍
09/25/2022 +31 days 🔍

Sourcesinfo

Advisory: 0113ac2d889c5322659ad0596d4cfc6da53e356c
Status: Confirmed

CVE: CVE-2021-4122 (🔍)
GCVE (CVE): GCVE-0-2021-4122
GCVE (VulDB): GCVE-100-207124

Entryinfo

Created: 08/25/2022 09:00
Updated: 09/25/2022 14:47
Changes: 08/25/2022 09:00 (39), 09/25/2022 14:47 (11)
Complete: 🔍
Cache ID: 216::103

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