Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Arm | Mbed Tls | < 2.26.0 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://github.com/ARMmbed/mbedtls/releasesRelease NotesThird Party Advisory
- https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.mRelease NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00021.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://github.com/ARMmbed/mbedtls/releasesRelease NotesThird Party Advisory
- https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.mRelease NotesThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00021.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
FAQ
What is CVE-2021-24119?
CVE-2021-24119 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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...
How severe is CVE-2021-24119?
CVE-2021-24119 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-24119?
Check the references section above for vendor advisories and patch information. Affected products include: Arm Mbed Tls, Fedoraproject Fedora, Debian Debian Linux.