What is the CVSS score of CVE-2021-37847?

CVE-2021-37847 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.5%.

Is there a public PoC exploit available for CVE-2021-37847?

Yes, a public proof-of-concept exploit is available for CVE-2021-37847. Prioritise patching immediately. EPSS: 1.5%.

Is there a patch available for CVE-2021-37847?

Yes, a patch is available for CVE-2021-37847. Update the affected software to the latest version immediately.

Barebox CVE-2021-37847

HIGH

2021-08-02 cve@mitre.org

Information Disclosure Barebox

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Aug 02, 2021 - 20:15 nvd

HIGH 7.5

DescriptionNVD

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

AnalysisAI

crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

crypto/digest.c in Pengutronix barebox through 2021.07.0 leaks timing information because memcmp is used during digest verification. Affected products include: Pengutronix Barebox. Version information: through 2021.07.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.