{"id":"UBUNTU-CVE-2018-0497","details":"ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows remote attackers to achieve partial plaintext recovery (for a CBC based ciphersuite) via a timing-based side-channel attack. This vulnerability exists because of an incorrect fix (with a wrong SHA-384 calculation) for CVE-2013-0169.","modified":"2026-03-25T18:16:28.773167Z","published":"2018-07-28T17:29:00Z","related":["USN-4267-1"],"upstream":["CVE-2018-0497"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-0497"},{"type":"REPORT","url":"https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4267-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-0497"}],"affected":[{"package":{"name":"mbedtls","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mbedtls@2.2.1-2ubuntu0.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.1-2ubuntu0.3"}]}],"versions":["2.1.2-1","2.2.0-1","2.2.1-1","2.2.1-2","2.2.1-2ubuntu0.1","2.2.1-2ubuntu0.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2.2.1-2ubuntu0.3","binary_name":"libmbedcrypto0"},{"binary_version":"2.2.1-2ubuntu0.3","binary_name":"libmbedtls-dev"},{"binary_version":"2.2.1-2ubuntu0.3","binary_name":"libmbedtls10"},{"binary_version":"2.2.1-2ubuntu0.3","binary_name":"libmbedx509-0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-0497.json"}},{"package":{"name":"mbedtls","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/mbedtls@2.8.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.1-1ubuntu1","2.6.0-1","2.7.0-2","2.8.0-1","2.8.0-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.8.0-1ubuntu0.1~esm1","binary_name":"libmbedcrypto1"},{"binary_version":"2.8.0-1ubuntu0.1~esm1","binary_name":"libmbedtls-dev"},{"binary_version":"2.8.0-1ubuntu0.1~esm1","binary_name":"libmbedtls10"},{"binary_version":"2.8.0-1ubuntu0.1~esm1","binary_name":"libmbedx509-0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-0497.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}