Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2019-1258)

The remote host is missing an update for the Huawei EulerOS 'openssl' package(s) announced via the EulerOS-SA-2019-1258 advisory.

If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable 'non-stitched' ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q).CVE-2019-1559

'openssl' package(s) on Huawei EulerOS Virtualization 2.5.3.

Checks if a vulnerable package version is present on the target host.

Please install the updated package(s).