FreeBSD/ports eb9a23b (r487431)security/vuxml vuln.xml

Add Mbed TLS Security Advisory 2018-03.

Security:       https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-03
Security:       CVE-2018-19608
DeltaFile
+28-0security/vuxml/vuln.xml
+28-01 files

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