Timing Information Leak in Pengutronix Barebox
CVE-2021-37847

7.5HIGH

Key Information:

Vendor

Pengutronix

Status
Barebox
Vendor
CVE Published:
2 August 2021

What is CVE-2021-37847?

A flaw exists in Pengutronix Barebox, where the use of memcmp for digest verification exposes timing information. This leakage can be exploited by attackers to infer sensitive data based on timing discrepancies, potentially leading to unauthorized access or exposure of cryptographic keys. Addressing this issue is crucial for maintaining the integrity and security of the affected system.

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References

https://github.com/saschahauer/barebox/commit/0a9f9a74106...
x_refsource_MISC
https://gist.github.com/gquere/816dfadbad98745090034100a8...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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