An 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. Reference: https://github.com/ARMmbed/mbedtls/issues/3340 https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.17 https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.8 https://github.com/ARMmbed/mbedtls/releases/tag/v2.24.0 Upstream patch: https://github.com/ARMmbed/mbedtls/pull/3433
Created mbedtls tracking bugs for this issue: Affects: epel-all [bug 1984515] Affects: fedora-all [bug 1984516]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
https://bodhi.fedoraproject.org/updates/FEDORA-2020-e2d7a16ae9 https://bodhi.fedoraproject.org/updates/FEDORA-2020-9e97ec4cba https://bodhi.fedoraproject.org/updates/FEDORA-2020-28faa5a9ca https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-f9a066663b https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-fe42686452