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CVE-2018-0497

Published: 28 July 2018

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.

Priority

Medium

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
mbedtls
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Not vulnerable
(2.12.0-1)
disco Not vulnerable
(2.12.0-1)
eoan Not vulnerable
(2.12.0-1)
focal Not vulnerable
(2.12.0-1)
groovy Not vulnerable
(2.12.0-1)
hirsute Not vulnerable
(2.12.0-1)
impish Not vulnerable
(2.12.0-1)
jammy Not vulnerable
(2.12.0-1)
kinetic Not vulnerable
(2.12.0-1)
lunar Not vulnerable
(2.12.0-1)
mantic Not vulnerable
(2.12.0-1)
trusty Does not exist

upstream
Released (2.12.0-1)
xenial
Released (2.2.1-2ubuntu0.3)
polarssl
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

trusty Does not exist
(trusty was needs-triage)
upstream
Released (1.3.9-2.1+deb8u4)
xenial Does not exist

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N