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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2826-1, DLA-3249-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mbedtls (PTS)stretch (security), stretch (lts), stretch2.4.2-1+deb9u4fixed
buster2.16.0-1vulnerable
buster (security)2.16.9-0~deb10u1fixed
bullseye2.16.9-0.1vulnerable
bookworm2.28.3-1fixed
trixie2.28.7-1fixed
sid2.28.7-1.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mbedtlssourcestretch2.4.2-1+deb9u4DLA-2826-1
mbedtlssourcebuster2.16.9-0~deb10u1DLA-3249-1
mbedtlssource(unstable)2.16.11-0.1

Notes

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

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