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CVE-2017-17689

Published: 16 May 2018

The S/MIME specification allows a Cipher Block Chaining (CBC) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL.

Notes

AuthorNote
mdeslaur
evolution upstream doesn't belive this is an issue, marking as
not-affected
in thunderbird, this was called CVE-2018-5162

Priority

Medium

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
kmail
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Needs triage

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Needs triage

trusty Does not exist

upstream Needs triage

xenial Does not exist

groovy Ignored
(end of life)
impish Ignored
(end of life)
hirsute Ignored
(end of life)
kinetic Ignored
(end of life, was needs-triage)
jammy Needs triage

mantic Needs triage

lunar Ignored
(end of life, was needs-triage)
thunderbird
Launchpad, Ubuntu, Debian
artful
Released (1:52.8.0+build1-0ubuntu0.17.10.1)
bionic
Released (1:52.8.0+build1-0ubuntu0.18.04.1)
cosmic
Released (1:60.2.1+build1-0ubuntu1)
impish
Released (1:60.2.1+build1-0ubuntu1)
hirsute
Released (1:60.2.1+build1-0ubuntu1)
jammy
Released (1:60.2.1+build1-0ubuntu1)
kinetic
Released (1:60.2.1+build1-0ubuntu1)
lunar
Released (1:60.2.1+build1-0ubuntu1)
trusty
Released (1:52.8.0+build1-0ubuntu0.14.04.1)
disco
Released (1:60.2.1+build1-0ubuntu1)
eoan
Released (1:60.2.1+build1-0ubuntu1)
focal
Released (1:60.2.1+build1-0ubuntu1)
groovy
Released (1:60.2.1+build1-0ubuntu1)
upstream Needs triage

xenial
Released (1:52.8.0+build1-0ubuntu0.16.04.1)
mantic
Released (1:60.2.1+build1-0ubuntu1)
evolution
Launchpad, Ubuntu, Debian
impish Not vulnerable

groovy Not vulnerable

hirsute Not vulnerable

jammy Not vulnerable

kinetic Not vulnerable

lunar Not vulnerable

artful Ignored
(end of life)
bionic Not vulnerable

cosmic Not vulnerable

disco Not vulnerable

eoan Not vulnerable

focal Not vulnerable

trusty Does not exist
(trusty was not-affected)
upstream Needs triage

xenial Not vulnerable

mantic Not vulnerable

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