CVE-2021-24119

NameCVE-2021-24119
DescriptionIn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mbedtls (PTS)stretch (security), stretch2.4.2-1+deb9u3vulnerable
buster2.16.0-1vulnerable
bookworm, bullseye, sid2.16.9-0.1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mbedtlssource(unstable)(unfixed)

Notes

[bullseye] - mbedtls <no-dsa> (Minor issue)
[buster] - mbedtls <no-dsa> (Minor issue)
[stretch] - mbedtls <no-dsa> (Minor issue)
Fixed in 2.26.0: https://github.com/ARMmbed/mbedtls/releases/tag/v2.26.0

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