Description
In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.
Published: 2021-07-14
Score: 4.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2826-1 mbedtls security update
Debian DLA Debian DLA DLA-3249-1 mbedtls security update
Debian DLA Debian DLA DLA-4236-1 mbedtls security update
EUVD EUVD EUVD-2021-11034 In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.
History

Mon, 03 Nov 2025 20:30:00 +0000

Type Values Removed Values Added
References

Subscriptions

Arm Mbed Tls
Debian Debian Linux
Fedoraproject Fedora
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-11-03T19:25:39.621Z

Reserved: 2021-01-14T00:00:00.000Z

Link: CVE-2021-24119

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-07-14T13:15:08.100

Modified: 2025-11-03T20:15:45.783

Link: CVE-2021-24119

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses