CVE-2021-37847

Public Exploit

Description

crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.32%

Third-Party Advisory github.com Third-Party Advisory github.com

Affected: n/a n/a

References

Link	Tags
https://github.com/saschahauer/barebox/commit/0a9f9a7410681e55362f8311537ebc7be9ad0fbe	third party advisory patch
https://gist.github.com/gquere/816dfadbad98745090034100a8a651eb	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-37847?: CVE-2021-37847 has been scored as a high severity vulnerability.
How to fix CVE-2021-37847?: To fix CVE-2021-37847, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-37847 being actively exploited in the wild?: It is possible that CVE-2021-37847 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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