Amazon Linux 1 Security Advisory: ALAS-2018-1098
Advisory Release Date: 2018-10-30 20:50 Pacific
Advisory Updated Date: 2018-11-01 23:45 Pacific
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack.(CVE-2018-0732 )
Affected Packages:
openssl
Issue Correction:
Run yum update openssl to update your system.
i686:
openssl-perl-1.0.2k-13.111.amzn1.i686
openssl-devel-1.0.2k-13.111.amzn1.i686
openssl-debuginfo-1.0.2k-13.111.amzn1.i686
openssl-1.0.2k-13.111.amzn1.i686
openssl-static-1.0.2k-13.111.amzn1.i686
src:
openssl-1.0.2k-13.111.amzn1.src
x86_64:
openssl-perl-1.0.2k-13.111.amzn1.x86_64
openssl-1.0.2k-13.111.amzn1.x86_64
openssl-devel-1.0.2k-13.111.amzn1.x86_64
openssl-debuginfo-1.0.2k-13.111.amzn1.x86_64
openssl-static-1.0.2k-13.111.amzn1.x86_64