Bug 1582574 (CVE-2018-10846) - CVE-2018-10846 gnutls: "Just in Time" PRIME + PROBE cache-based side channel attack can lead to plaintext recovery
Summary: CVE-2018-10846 gnutls: "Just in Time" PRIME + PROBE cache-based side channel ...
Status: CLOSED ERRATA
Alias: CVE-2018-10846
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20180821,repor...
Keywords: Security
Depends On: 1619523 1619525 1622403 1589708 1589709 1619521 1619522 1619524
Blocks: 1582575
TreeView+ depends on / blocked
 
Reported: 2018-05-25 15:39 UTC by Adam Mariš
Modified: 2019-06-11 11:13 UTC (History)
13 users (show)

(edit)
A cache-based side channel attack was found in the way GnuTLS implements CBC-mode cipher suites. An attacker could use a combination of "Just in Time" Prime+probe and Lucky-13 attacks to recover plain text in a cross-VM attack scenario.
Clone Of:
(edit)
Last Closed: 2019-06-10 10:26:40 UTC


Attachments (Terms of Use)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3050 None None None 2018-10-30 07:24 UTC

Description Adam Mariš 2018-05-25 15:39:00 UTC
A cache-based side channel in GnuTLS implementation that leads to plaintext recovery in cross-VM attack setting was found. The attack exploits a novel "Just in Time" PRIME + PROBE attack in combination with a new variant of the original Lucky 13 attack.

Comment 9 Huzaifa S. Sidhpurwala 2018-08-21 05:51:46 UTC
External References:

https://eprint.iacr.org/2018/747

Comment 10 Huzaifa S. Sidhpurwala 2018-08-21 05:54:35 UTC
Created gnutls tracking bugs for this issue:

Affects: fedora-all [bug 1619522]


Created gnutls30 tracking bugs for this issue:

Affects: epel-all [bug 1619524]


Created mingw-gnutls tracking bugs for this issue:

Affects: epel-all [bug 1619525]
Affects: fedora-all [bug 1619523]

Comment 12 Huzaifa S. Sidhpurwala 2018-08-21 06:01:23 UTC
Upstream patch:

https://gitlab.com/gnutls/gnutls/merge_requests/657

Comment 17 errata-xmlrpc 2018-10-30 07:24:48 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3050 https://access.redhat.com/errata/RHSA-2018:3050


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