CVE-2021-37847
HIGHCVSS 7.5/10EPSS 1.54%
Last modified
CVE-2021-37847 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification.. EPSS estimates a 1.54% chance of exploitation in the next 30 days.
Description
crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pengutronix | Barebox | <= 2021.07.0 |
References
- https://gist.github.com/gquere/816dfadbad98745090034100a8a651ebExploit, Third Party Advisory
- https://github.com/saschahauer/barebox/commit/0a9f9a7410681e55362f8311537ebc7be9ad0fbePatch, Third Party Advisory
- https://gist.github.com/gquere/816dfadbad98745090034100a8a651ebExploit, Third Party Advisory
- https://github.com/saschahauer/barebox/commit/0a9f9a7410681e55362f8311537ebc7be9ad0fbePatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-37847?
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 a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.
How do I fix CVE-2021-37847?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-37847?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST