Bug 1582574 – CVE-2018-10846 gnutls: "Just in Time" PRIME + PROBE cache-based side channel attack can lead to plaintext recovery

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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:	NEW

Aliases:	CVE-2018-10846

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20180821,repor...
Keywords:	Security

Depends On:	1619523 1619525 1622403 1589708 1589709 1619521 1619522 1619524
Blocks:	1582575
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Reported:	2018-05-25 11:39 EDT by Adam Mariš
Modified:	2018-10-30 03:24 EDT (History)
CC List:	14 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:	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.
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Last Closed:
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Regression:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:3050	None	None	None	2018-10-30 03:24 EDT

Groups: None (edit)

Description Adam Mariš 2018-05-25 11:39:00 EDT

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 01:51:46 EDT

External References:

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

Comment 10 Huzaifa S. Sidhpurwala 2018-08-21 01:54:35 EDT

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 02:01:23 EDT

Upstream patch:

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

Comment 17 errata-xmlrpc 2018-10-30 03:24:48 EDT

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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