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CVE-2020-11683

nvd nist
Published: Sep 14, 2020Modified: Jun 17, 2026

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6.8
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 0.9 / Impact: 5.9
Source: NVD

Description

A timing side channel was discovered in AT91bootstrap before 3.9.2. It can be exploited by attackers with physical access to forge CMAC values and subsequently boot arbitrary code on an affected system.

Affected (1)

Linux4sam
1 product
At91bootstrap
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
At91bootstrap
From 3.7.2 to 3.9.2

Related CWEs

CWE-203
Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (4)

Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.