CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
84.7%
Issue Overview:
A microprocessor side-channel vulnerability was found on SMT (e.g, Hyper-Threading) architectures. An attacker running a malicious process on the same core of the processor as the victim process can extract certain secret information. (CVE-2018-5407)
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).
(CVE-2019-1559)
Affected Packages:
openssl
Issue Correction:
Run yum update openssl to update your system.
New Packages:
i686:
openssl-debuginfo-1.0.2k-16.150.amzn1.i686
openssl-1.0.2k-16.150.amzn1.i686
openssl-static-1.0.2k-16.150.amzn1.i686
openssl-devel-1.0.2k-16.150.amzn1.i686
openssl-perl-1.0.2k-16.150.amzn1.i686
src:
openssl-1.0.2k-16.150.amzn1.src
x86_64:
openssl-1.0.2k-16.150.amzn1.x86_64
openssl-static-1.0.2k-16.150.amzn1.x86_64
openssl-devel-1.0.2k-16.150.amzn1.x86_64
openssl-debuginfo-1.0.2k-16.150.amzn1.x86_64
openssl-perl-1.0.2k-16.150.amzn1.x86_64
Red Hat: CVE-2018-5407, CVE-2019-1559
Mitre: CVE-2018-5407, CVE-2019-1559
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 1 | i686 | openssl-debuginfo | < 1.0.2k-16.150.amzn1 | openssl-debuginfo-1.0.2k-16.150.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl | < 1.0.2k-16.150.amzn1 | openssl-1.0.2k-16.150.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl-static | < 1.0.2k-16.150.amzn1 | openssl-static-1.0.2k-16.150.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl-devel | < 1.0.2k-16.150.amzn1 | openssl-devel-1.0.2k-16.150.amzn1.i686.rpm |
Amazon Linux | 1 | i686 | openssl-perl | < 1.0.2k-16.150.amzn1 | openssl-perl-1.0.2k-16.150.amzn1.i686.rpm |
Amazon Linux | 1 | x86_64 | openssl | < 1.0.2k-16.150.amzn1 | openssl-1.0.2k-16.150.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl-static | < 1.0.2k-16.150.amzn1 | openssl-static-1.0.2k-16.150.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl-devel | < 1.0.2k-16.150.amzn1 | openssl-devel-1.0.2k-16.150.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl-debuginfo | < 1.0.2k-16.150.amzn1 | openssl-debuginfo-1.0.2k-16.150.amzn1.x86_64.rpm |
Amazon Linux | 1 | x86_64 | openssl-perl | < 1.0.2k-16.150.amzn1 | openssl-perl-1.0.2k-16.150.amzn1.x86_64.rpm |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
84.7%