Vulnerability Description
crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pengutronix | Barebox | <= 2021.07.0 |
References
- https://gist.github.com/gquere/816dfadbad98745090034100a8a651ebExploitThird Party Advisory
- https://github.com/saschahauer/barebox/commit/0a9f9a7410681e55362f8311537ebc7be9PatchThird Party Advisory
- https://gist.github.com/gquere/816dfadbad98745090034100a8a651ebExploitThird Party Advisory
- https://github.com/saschahauer/barebox/commit/0a9f9a7410681e55362f8311537ebc7be9PatchThird Party Advisory
FAQ
What is CVE-2021-37847?
CVE-2021-37847 is a vulnerability with a CVSS score of 7.5 (HIGH). crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification.
How severe is CVE-2021-37847?
CVE-2021-37847 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-37847?
Check the references section above for vendor advisories and patch information. Affected products include: Pengutronix Barebox.