CVE-2018-0495

Upstream information

CVE-2018-0495 at MITRE

Description

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v2 Scores
	National Vulnerability Database
Base Score	1.9
Vector	AV:L/AC:M/Au:N/C:P/I:N/A:N
Access Vector	Local
Access Complexity	Medium
Authentication	None
Confidentiality Impact	Partial
Integrity Impact	None
Availability Impact	None

CVSS v3 Scores
	National Vulnerability Database	SUSE
Base Score	4.7	5.1
Vector	AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N	AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Access Vector	Local	Local
Access Complexity	High	High
Privileges Required	Low	None
User Interaction	None	None
Scope	Unchanged	Unchanged
Confidentiality Impact	High	High
Integrity Impact	None	None
Availability Impact	None	None

SUSE Bugzilla entry: 1097410 [IN_PROGRESS]

SUSE Security Advisories:

SUSE-SU-2018:1993-1, published Thu Jul 19 07:13:33 MDT 2018
SUSE-SU-2018:2089-1, published Fri Jul 27 11:00:41 MDT 2018
SUSE-SU-2018:2452-1, published Mon Aug 20 07:26:24 MDT 2018
openSUSE-SU-2018:2122-1, published Sat, 28 Jul 2018 16:00:35 +0200 (CEST)
openSUSE-SU-2018:2178-1, published Fri, 3 Aug 2018 21:07:44 +0200 (CEST)

List of released packages

Product(s)	Fixed package version(s)	References
Openstack Cloud Magnum Orchestration 7	`libgcrypt >= 1.6.1-16.55.1` `libgcrypt20 >= 1.6.1-16.55.1`	Patchnames: SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-1413
SUSE CaaS Platform 3.0	`libgcrypt >= 1.6.1-16.61.1` `libgcrypt20 >= 1.6.1-16.61.1`	Patchnames: SUSE-CAASP-3.0-2018-1697
SUSE CaaS Platform ALL	`libgcrypt >= 1.6.1-16.55.1` `libgcrypt20 >= 1.6.1-16.55.1`	Patchnames: SUSE-CAASP-ALL-2018-1413
SUSE Linux Enterprise Desktop 12 SP3	`libgcrypt >= 1.6.1-16.55.1` `libgcrypt20 >= 1.6.1-16.55.1` `libgcrypt20-32bit >= 1.6.1-16.55.1`	Patchnames: SUSE-SLE-DESKTOP-12-SP3-2018-1413
SUSE Linux Enterprise Module for Basesystem 15	`libgcrypt >= 1.8.2-6.3.1` `libgcrypt-devel >= 1.8.2-6.3.1` `libgcrypt20 >= 1.8.2-6.3.1` `libgcrypt20-32bit >= 1.8.2-6.3.1` `libgcrypt20-hmac >= 1.8.2-6.3.1` `libgcrypt20-hmac-32bit >= 1.8.2-6.3.1`	Patchnames: SUSE-SLE-Module-Basesystem-15-2018-1347
SUSE Linux Enterprise Server 12 SP3	`libgcrypt >= 1.6.1-16.55.1` `libgcrypt20 >= 1.6.1-16.55.1` `libgcrypt20-32bit >= 1.6.1-16.55.1` `libgcrypt20-hmac >= 1.6.1-16.55.1` `libgcrypt20-hmac-32bit >= 1.6.1-16.55.1`	Patchnames: SUSE-SLE-SERVER-12-SP3-2018-1413
SUSE Linux Enterprise Server for SAP Applications 12 SP3	`libgcrypt >= 1.6.1-16.55.1` `libgcrypt20 >= 1.6.1-16.55.1` `libgcrypt20-32bit >= 1.6.1-16.55.1` `libgcrypt20-hmac >= 1.6.1-16.55.1` `libgcrypt20-hmac-32bit >= 1.6.1-16.55.1`	Patchnames: SUSE-SLE-SERVER-12-SP3-2018-1413
SUSE Linux Enterprise Software Development Kit 12 SP3	`libgcrypt >= 1.6.1-16.55.1` `libgcrypt-devel >= 1.6.1-16.55.1`	Patchnames: SUSE-SLE-SDK-12-SP3-2018-1413
openSUSE Leap 15.0	`libgcrypt >= 1.8.2-lp150.5.3.1` `libgcrypt-cavs >= 1.8.2-lp150.5.3.1` `libgcrypt-cavs-debuginfo >= 1.8.2-lp150.5.3.1` `libgcrypt-debugsource >= 1.8.2-lp150.5.3.1` `libgcrypt-devel >= 1.8.2-lp150.5.3.1` `libgcrypt-devel-32bit >= 1.8.2-lp150.5.3.1` `libgcrypt-devel-32bit-debuginfo >= 1.8.2-lp150.5.3.1` `libgcrypt-devel-debuginfo >= 1.8.2-lp150.5.3.1` `libgcrypt20 >= 1.8.2-lp150.5.3.1` `libgcrypt20-32bit >= 1.8.2-lp150.5.3.1` `libgcrypt20-32bit-debuginfo >= 1.8.2-lp150.5.3.1` `libgcrypt20-debuginfo >= 1.8.2-lp150.5.3.1` `libgcrypt20-hmac >= 1.8.2-lp150.5.3.1` `libgcrypt20-hmac-32bit >= 1.8.2-lp150.5.3.1`	Patchnames: openSUSE-2018-769
openSUSE Leap 42.3	`libgcrypt >= 1.6.1-45.1` `libgcrypt-cavs >= 1.6.1-45.1` `libgcrypt-cavs-debuginfo >= 1.6.1-45.1` `libgcrypt-debugsource >= 1.6.1-45.1` `libgcrypt-devel >= 1.6.1-45.1` `libgcrypt-devel-32bit >= 1.6.1-45.1` `libgcrypt-devel-debuginfo >= 1.6.1-45.1` `libgcrypt-devel-debuginfo-32bit >= 1.6.1-45.1` `libgcrypt20 >= 1.6.1-45.1` `libgcrypt20-32bit >= 1.6.1-45.1` `libgcrypt20-debuginfo >= 1.6.1-45.1` `libgcrypt20-debuginfo-32bit >= 1.6.1-45.1` `libgcrypt20-hmac >= 1.6.1-45.1` `libgcrypt20-hmac-32bit >= 1.6.1-45.1`	Patchnames: openSUSE-2018-795

List of packages in QA

Product(s)	Package(s)
Openstack Cloud Magnum Orchestration 7	`libgcrypt >= 1.6.1-16.62.1` `libgcrypt-debugsource >= 1.6.1-16.62.1` `libgcrypt20 >= 1.6.1-16.62.1` `libgcrypt20-debuginfo >= 1.6.1-16.62.1`
SUSE CaaS Platform 3.0	`libgcrypt >= 1.6.1-16.62.1` `libgcrypt-debugsource >= 1.6.1-16.62.1` `libgcrypt20 >= 1.6.1-16.62.1` `libgcrypt20-debuginfo >= 1.6.1-16.62.1`
SUSE CaaS Platform ALL	`libgcrypt >= 1.6.1-16.62.1` `libgcrypt-debugsource >= 1.6.1-16.62.1` `libgcrypt20 >= 1.6.1-16.62.1` `libgcrypt20-debuginfo >= 1.6.1-16.62.1`
SUSE Linux Enterprise Desktop 12 SP3	`libgcrypt >= 1.6.1-16.62.1` `libgcrypt-debugsource >= 1.6.1-16.62.1` `libgcrypt20 >= 1.6.1-16.62.1` `libgcrypt20-32bit >= 1.6.1-16.62.1` `libgcrypt20-debuginfo >= 1.6.1-16.62.1` `libgcrypt20-debuginfo-32bit >= 1.6.1-16.62.1`
SUSE Linux Enterprise Server 12 SP3	`libgcrypt >= 1.6.1-16.62.1` `libgcrypt-debugsource >= 1.6.1-16.62.1` `libgcrypt20 >= 1.6.1-16.62.1` `libgcrypt20-32bit >= 1.6.1-16.62.1` `libgcrypt20-debuginfo >= 1.6.1-16.62.1` `libgcrypt20-debuginfo-32bit >= 1.6.1-16.62.1` `libgcrypt20-hmac >= 1.6.1-16.62.1` `libgcrypt20-hmac-32bit >= 1.6.1-16.62.1`
SUSE Linux Enterprise Server for SAP Applications 12 SP3	`libgcrypt >= 1.6.1-16.62.1` `libgcrypt-debugsource >= 1.6.1-16.62.1` `libgcrypt20 >= 1.6.1-16.62.1` `libgcrypt20-32bit >= 1.6.1-16.62.1` `libgcrypt20-debuginfo >= 1.6.1-16.62.1` `libgcrypt20-debuginfo-32bit >= 1.6.1-16.62.1` `libgcrypt20-hmac >= 1.6.1-16.62.1` `libgcrypt20-hmac-32bit >= 1.6.1-16.62.1`
SUSE Linux Enterprise Software Development Kit 12 SP3	`libgcrypt >= 1.6.1-16.62.1` `libgcrypt-debugsource >= 1.6.1-16.62.1` `libgcrypt-devel >= 1.6.1-16.62.1` `libgcrypt-devel-debuginfo >= 1.6.1-16.62.1`

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s)	Source package	State
CaaS Platform 1.0	libgcrypt	In progress
CaaS Platform 2.0	libgcrypt	In progress
CaaS Platform 3.0	libgcrypt	In progress
OpenStack Cloud Magnum Orchestration 7.0	libgcrypt	In progress
SUSE Linux Enterprise Desktop 11 GA	libgcrypt	Ignore
SUSE Linux Enterprise Desktop 11 SP1	libgcrypt	Ignore
SUSE Linux Enterprise Desktop 11 SP2	libgcrypt	Ignore
SUSE Linux Enterprise Desktop 11 SP3	libgcrypt	Ignore
SUSE Linux Enterprise Desktop 11 SP4	libgcrypt	Ignore
SUSE Linux Enterprise Desktop 12 SP1	libgcrypt	Affected
SUSE Linux Enterprise Desktop 12 SP2	libgcrypt	Affected
SUSE Linux Enterprise Desktop 12 SP3	libgcrypt	In progress
SUSE Linux Enterprise Desktop 12 SP4	libgcrypt	In progress
SUSE Linux Enterprise High Performance Computing 12	libgcrypt	In progress
SUSE Linux Enterprise Module for Basesystem 15 GA	libgcrypt	Released
SUSE Linux Enterprise SDK 11 SP4	libgcrypt	Ignore
SUSE Linux Enterprise SDK 12 SP3	libgcrypt	In progress
SUSE Linux Enterprise SDK 12 SP4	libgcrypt	In progress
SUSE Linux Enterprise Server 11 SP3 LTSS	libgcrypt	Ignore
SUSE Linux Enterprise Server 11 SP4	libgcrypt	Ignore
SUSE Linux Enterprise Server 12 GA LTSS	libgcrypt	Affected
SUSE Linux Enterprise Server 12 SP1 LTSS	libgcrypt	Affected
SUSE Linux Enterprise Server 12 SP2 LTSS	libgcrypt	Affected
SUSE Linux Enterprise Server 12 SP3	libgcrypt	In progress
SUSE Linux Enterprise Server 12 SP4	libgcrypt	In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP4	libgcrypt	In progress