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CVE-2018-10846

Published: 22 August 2018

A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets.

Notes

AuthorNote
mdeslaur
same commits as listed in CVE-2018-10844

Priority

Medium

Cvss 3 Severity Score

5.6

Score breakdown

Status

Package Release Status
gnutls26
Launchpad, Ubuntu, Debian
bionic Does not exist

hirsute Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

impish Does not exist

trusty Needed

upstream Needs triage

xenial Does not exist

mantic Does not exist

gnutls28
Launchpad, Ubuntu, Debian
kinetic Not vulnerable
(3.6.5-2ubuntu1)
lunar Not vulnerable
(3.6.5-2ubuntu1)
bionic
Released (3.5.18-1ubuntu1.1)
cosmic Not vulnerable
(3.6.4-2ubuntu1)
disco Not vulnerable
(3.6.5-2ubuntu1)
eoan Not vulnerable
(3.6.5-2ubuntu1)
focal Not vulnerable
(3.6.5-2ubuntu1)
groovy Not vulnerable
(3.6.5-2ubuntu1)
hirsute Not vulnerable
(3.6.5-2ubuntu1)
impish Not vulnerable
(3.6.5-2ubuntu1)
jammy Not vulnerable
(3.6.5-2ubuntu1)
trusty Does not exist
(trusty was needed)
upstream
Released (3.5.19,3.6.3)
xenial
Released (3.4.10-4ubuntu1.5)
mantic Not vulnerable
(3.6.5-2ubuntu1)
Patches:
upstream: https://gitlab.com/gnutls/gnutls/merge_requests/657
upstream: https://gitlab.com/gnutls/gnutls/commit/ce671a6db9e47006cff152d485091141b1569f39

Severity score breakdown

Parameter Value
Base score 5.6
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N