Pengutronix Barebox up to 2021.07.0 common/password.c strncmp timing discrepancy

CVSS Meta Temp Score
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CTI Interest Score
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2.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Pengutronix Barebox up to 2021.07.0. This affects the function strncmp of the file common/password.c. The manipulation leads to timing discrepancy. This vulnerability is uniquely identified as CVE-2021-37848. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Pengutronix Barebox up to 2021.07.0. This issue affects the function strncmp of the file common/password.c. The manipulation with an unknown input leads to a timing discrepancy vulnerability. Using CWE to declare the problem leads to CWE-208. Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not. Impacted is confidentiality.

The weakness was disclosed 08/03/2021 as a3337563c705bc8e0cf32f910b3e9e3c43d962ff. The advisory is shared at github.com. The identification of this vulnerability is CVE-2021-37848. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.6
VulDB Meta Temp Score: 2.5

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
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: Timing discrepancy
CWE: CWE-208 / CWE-203 / CWE-200
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: github.com

Timelineinfo

08/02/2021 🔍
08/03/2021 +1 days 🔍
08/03/2021 +0 days 🔍
08/07/2021 +4 days 🔍

Sourcesinfo

Advisory: a3337563c705bc8e0cf32f910b3e9e3c43d962ff
Status: Confirmed

CVE: CVE-2021-37848 (🔍)
GCVE (CVE): GCVE-0-2021-37848
GCVE (VulDB): GCVE-100-179957

Entryinfo

Created: 08/03/2021 12:15
Updated: 08/07/2021 08:44
Changes: 08/03/2021 12:15 (40), 08/07/2021 08:44 (2)
Complete: 🔍
Cache ID: 216::103

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