CVE-2020-36425

NameCVE-2020-36425
DescriptionAn issue was discovered in Arm Mbed TLS before 2.24.0. It incorrectly uses a revocationDate check when deciding whether to honor certificate revocation via a CRL. In some situations, an attacker can exploit this by changing the local clock.
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)

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
bullseye, sid2.16.9-0.1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mbedtlssource(unstable)2.16.9-0.1

Notes

https://github.com/ARMmbed/mbedtls/issues/3340
https://github.com/ARMmbed/mbedtls/pull/3433

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