CVE-2021-24119

Medium

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.

SeverityMedium

CVSS4.9

Exploit probability—

Product

Arm Mbed Tls

PublishedJul 14, 2021

First seenJul 14, 2021

How to fix

Update

arm mbed_tls2.26.0 or later

Vendor advisories

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRRVY7DMTX3ECFNZKDYTSFEG5AI2HBC6/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYJW7HAW3TDV2YMDFYXP3HD6WRQRTLJW/

Affected products

Product	Affected versions	Fixed in
arm mbed_tls	v < 2.26.0	2.26.0
fedoraproject fedora	33, 34	—
debian debian_linux	9.0, 10.0	—

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