Upstream information

CVE-2018-3691 at MITRE

Description

Some implementations in Intel Integrated Performance Primitives Cryptography Library before version 2018 U3.1 do not properly ensure constant execution time.

SUSE information

Overall state of this security issue: Resolved

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 6
Vector AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
Access Vector Local Local
Access Complexity High Low
Privileges Required Low High
User Interaction None None
Scope Unchanged Changed
Confidentiality Impact High High
Integrity Impact None None
Availability Impact None None

Note from the SUSE Security Team

This attack called 'MemJam' is a published attack against a cryptographic implementation in the Intel SGX enclave. While the proof of concept exploit is specific to Intel SGX (and so not under responsibility of the OS), the attack could be adapted to other code places.

SUSE Bugzilla entries: 1087082 [RESOLVED / FIXED], 1087086 [RESOLVED / FIXED], 1090338 [RESOLVED / FIXED], 1095241 [RESOLVED / DUPLICATE], 1095242 [RESOLVED / FIXED], 1113769 [NEW], 1115633 [RESOLVED / INVALID]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 xen Released
CaaS Platform 2.0 xen Released
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Analysis
SUSE Linux Enterprise Desktop 12 SP3 xen Released
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 12 kernel-source Analysis
SUSE Linux Enterprise Module for Basesystem 15 GA kernel-source Analysis
SUSE Linux Enterprise Module for Basesystem 15 GA xen Released
SUSE Linux Enterprise Module for Development Tools 15 GA kernel-source Analysis
SUSE Linux Enterprise Module for Server Applications 15 GA xen Released
SUSE Linux Enterprise SDK 11 SP4 xen Released
SUSE Linux Enterprise SDK 12 SP3 xen Released
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 11 SP3 LTSS xen Released
SUSE Linux Enterprise Server 11 SP4 kernel-source Analysis
SUSE Linux Enterprise Server 11 SP4 xen Released
SUSE Linux Enterprise Server 12 GA LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 GA LTSS xen Released
SUSE Linux Enterprise Server 12 SP1 LTSS xen Released
SUSE Linux Enterprise Server 12 SP2 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2 LTSS xen Released
SUSE Linux Enterprise Server 12 SP3 kernel-source Analysis
SUSE Linux Enterprise Server 12 SP3 xen Released
SUSE Linux Enterprise Server 12 SP4 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 11 SP3 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 GA kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP2 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Analysis