openvpn -- server-side denial-of-service vulnerability with tls-crypt-v2

Gert Doering reports: OpenVPN servers between 2.6.1 and 2.6.13 using --tls-crypt-v2 can be made to abort with an ASSERT message by sending a particular combination of authenticated and malformed packets. To trigger the bug, a valid tls-crypt-v2 client key is needed, or network observation of a...

UBUNTU-CVE-2018-9860

An issue was discovered in Botan 1.11.32 through 2.x before 2.6.0. An off-by-one error when processing malformed TLS-CBC ciphertext could cause the receiving side to include in the HMAC computation exactly 64K bytes of data following the record buffer, aka an over-read. The MAC comparison will...