CVE-2021-24119

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.

Category

4.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/ARMmbed/mbedtls/releases third party advisory release notes
https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md third party advisory release notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DRRVY7DMTX3ECFNZKDYTSFEG5AI2HBC6/ mailing list third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYJW7HAW3TDV2YMDFYXP3HD6WRQRTLJW/ mailing list third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-24119?
CVE-2021-24119 has been scored as a medium severity vulnerability.
How to fix CVE-2021-24119?
To fix CVE-2021-24119, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-24119 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-24119 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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