CVE-2018-0497 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02 https://usn.ubuntu.com/4267-1/ https://www.debian.org/security/2018/dsa-4296

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.9