公告ID: KYLIN-2019-1559
安全等级: 中等
产品: Kylin V3
发布日期: 2019年2月26日
CVE: CVE-2019-1559
CVSS3评分: 6.8
概述:
None 描述:
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). 系统版本:
KYLIN 3.0.x
KYLIN 3.0.x
KYLIN 3.2.x
KYLIN 3.2.x
KYLIN 3.3.x
KYLIN 3.3.x
KYLIN 3.3.x
受影响包列表:
openssl097a
openssl
openssl098e
openssl
openssl
OVMF
openssl098e