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    CVE-2018-3640

    Systems with microprocessors utilizing speculative execution and that perform speculative reads of system registers may allow unauthorized disclosure of system parameters to an attacker with local user access via a side-channel analysis, aka Rogue System Register Read (RSRE), Variant 3a.

    Published:May 21, 2018
    Last Modified:Nov 21, 2024
    EPS:May 22, 2018
    EPSS Score:0.01182
    CVSS Score:5.6

    Affected Products

    Vendor
    Arm
    Product
    Cortex-a
    Vendor
    Intel
    Product
    Atom C
    Vendor
    Intel
    Product
    Atom E
    Vendor
    Intel
    Product
    Atom Z
    Vendor
    Intel
    Product
    Celeron J
    Vendor
    Intel
    Product
    Celeron N
    Vendor
    Intel
    Product
    Core I3
    Vendor
    Intel
    Product
    Core I5
    Vendor
    Intel
    Product
    Core I7
    Vendor
    Intel
    Product
    Core M
    Vendor
    Intel
    Product
    Pentium
    Vendor
    Intel
    Product
    Pentium J
    Vendor
    Intel
    Product
    Pentium Silver
    Vendor
    Intel
    Product
    Xeon E-1105c
    Vendor
    Intel
    Product
    Xeon E3
    Vendor
    Intel
    Product
    Xeon E3 1105c V2
    Vendor
    Intel
    Product
    Xeon E3 1125c V2
    Vendor
    Intel
    Product
    Xeon E3 12201
    Vendor
    Intel
    Product
    Xeon E3 12201 V2
    Vendor
    Intel
    Product
    Xeon E3 1220 V2
    Vendor
    Intel
    Product
    Xeon E3 1220 V3
    Vendor
    Intel
    Product
    Xeon E3 1220 V5
    Vendor
    Intel
    Product
    Xeon E3 1220 V6
    Vendor
    Intel
    Product
    Xeon E3 1220l V3
    Vendor
    Intel
    Product
    Xeon E3 1225
    Vendor
    Intel
    Product
    Xeon E3 1225 V2
    Vendor
    Intel
    Product
    Xeon E3 1225 V3
    Vendor
    Intel
    Product
    Xeon E3 1225 V5
    Vendor
    Intel
    Product
    Xeon E3 1225 V6
    Vendor
    Intel
    Product
    Xeon E3 1226 V3
    Vendor
    Intel
    Product
    Xeon E3 1230
    Vendor
    Intel
    Product
    Xeon E3 1230 V2
    Vendor
    Intel
    Product
    Xeon E3 1230 V3
    Vendor
    Intel
    Product
    Xeon E3 1230 V5
    Vendor
    Intel
    Product
    Xeon E3 1230 V6
    Vendor
    Intel
    Product
    Xeon E3 1230l V3
    Vendor
    Intel
    Product
    Xeon E3 1231 V3
    Vendor
    Intel
    Product
    Xeon E3 1235
    Vendor
    Intel
    Product
    Xeon E3 1235l V5
    Vendor
    Intel
    Product
    Xeon E3 1240
    Vendor
    Intel
    Product
    Xeon E3 1240 V2
    Vendor
    Intel
    Product
    Xeon E3 1240 V3
    Vendor
    Intel
    Product
    Xeon E3 1240 V5
    Vendor
    Intel
    Product
    Xeon E3 1240 V6
    Vendor
    Intel
    Product
    Xeon E3 1240l V3
    Vendor
    Intel
    Product
    Xeon E3 1240l V5
    Vendor
    Intel
    Product
    Xeon E3 1241 V3
    Vendor
    Intel
    Product
    Xeon E3 1245
    Vendor
    Intel
    Product
    Xeon E3 1245 V2
    Vendor
    Intel
    Product
    Xeon E3 1245 V3
    Vendor
    Intel
    Product
    Xeon E3 1245 V5
    Vendor
    Intel
    Product
    Xeon E3 1245 V6
    Vendor
    Intel
    Product
    Xeon E3 1246 V3
    Vendor
    Intel
    Product
    Xeon E3 1258l V4
    Vendor
    Intel
    Product
    Xeon E3 1260l
    Vendor
    Intel
    Product
    Xeon E3 1260l V5
    Vendor
    Intel
    Product
    Xeon E3 1265l V2
    Vendor
    Intel
    Product
    Xeon E3 1265l V3
    Vendor
    Intel
    Product
    Xeon E3 1265l V4
    Vendor
    Intel
    Product
    Xeon E3 1268l V3
    Vendor
    Intel
    Product
    Xeon E3 1268l V5
    Vendor
    Intel
    Product
    Xeon E3 1270
    Vendor
    Intel
    Product
    Xeon E3 1270 V2
    Vendor
    Intel
    Product
    Xeon E3 1270 V3
    Vendor
    Intel
    Product
    Xeon E3 1270 V5
    Vendor
    Intel
    Product
    Xeon E3 1270 V6
    Vendor
    Intel
    Product
    Xeon E3 1271 V3
    Vendor
    Intel
    Product
    Xeon E3 1275 V2
    Vendor
    Intel
    Product
    Xeon E3 1275 V3
    Vendor
    Intel
    Product
    Xeon E3 1275 V5
    Vendor
    Intel
    Product
    Xeon E3 1275 V6
    Vendor
    Intel
    Product
    Xeon E3 1275l V3
    Vendor
    Intel
    Product
    Xeon E3 1276 V3
    Vendor
    Intel
    Product
    Xeon E3 1278l V4
    Vendor
    Intel
    Product
    Xeon E3 1280
    Vendor
    Intel
    Product
    Xeon E3 1280 V2
    Vendor
    Intel
    Product
    Xeon E3 1280 V3
    Vendor
    Intel
    Product
    Xeon E3 1280 V5
    Vendor
    Intel
    Product
    Xeon E3 1280 V6
    Vendor
    Intel
    Product
    Xeon E3 1281 V3
    Vendor
    Intel
    Product
    Xeon E3 1285 V3
    Vendor
    Intel
    Product
    Xeon E3 1285 V4
    Vendor
    Intel
    Product
    Xeon E3 1285 V6
    Vendor
    Intel
    Product
    Xeon E3 1285l V3
    Vendor
    Intel
    Product
    Xeon E3 1285l V4
    Vendor
    Intel
    Product
    Xeon E3 1286 V3
    Vendor
    Intel
    Product
    Xeon E3 1286l V3
    Vendor
    Intel
    Product
    Xeon E3 1290
    Vendor
    Intel
    Product
    Xeon E3 1290 V2
    Vendor
    Intel
    Product
    Xeon E3 1501l V6
    Vendor
    Intel
    Product
    Xeon E3 1501m V6
    Vendor
    Intel
    Product
    Xeon E3 1505l V5
    Vendor
    Intel
    Product
    Xeon E3 1505l V6
    Vendor
    Intel
    Product
    Xeon E3 1505m V5
    Vendor
    Intel
    Product
    Xeon E5
    Vendor
    Intel
    Product
    Xeon E5 1428l
    Vendor
    Intel
    Product
    Xeon E5 1428l V2
    Vendor
    Intel
    Product
    Xeon E5 1428l V3
    Vendor
    Intel
    Product
    Xeon E5 1620
    Vendor
    Intel
    Product
    Xeon E5 1620 V2
    Vendor
    Intel
    Product
    Xeon E5 1620 V3
    Vendor
    Intel
    Product
    Xeon E5 1620 V4
    Vendor
    Intel
    Product
    Xeon E5 1630 V3
    Vendor
    Intel
    Product
    Xeon E5 1630 V4
    Vendor
    Intel
    Product
    Xeon E5 1650
    Vendor
    Intel
    Product
    Xeon E5 1650 V2
    Vendor
    Intel
    Product
    Xeon E5 1650 V3
    Vendor
    Intel
    Product
    Xeon E5 1650 V4
    Vendor
    Intel
    Product
    Xeon E5 1660
    Vendor
    Intel
    Product
    Xeon E5 1660 V2
    Vendor
    Intel
    Product
    Xeon E5 1660 V3
    Vendor
    Intel
    Product
    Xeon E5 1660 V4
    Vendor
    Intel
    Product
    Xeon E5 1680 V3
    Vendor
    Intel
    Product
    Xeon E5 1680 V4
    Vendor
    Intel
    Product
    Xeon E5 2403
    Vendor
    Intel
    Product
    Xeon E5 2403 V2
    Vendor
    Intel
    Product
    Xeon E5 2407
    Vendor
    Intel
    Product
    Xeon E5 2407 V2
    Vendor
    Intel
    Product
    Xeon E5 2408l V3
    Vendor
    Intel
    Product
    Xeon E5 2418l
    Vendor
    Intel
    Product
    Xeon E5 2418l V2
    Vendor
    Intel
    Product
    Xeon E5 2418l V3
    Vendor
    Intel
    Product
    Xeon E5 2420
    Vendor
    Intel
    Product
    Xeon E5 2420 V2
    Vendor
    Intel
    Product
    Xeon E5 2428l
    Vendor
    Intel
    Product
    Xeon E5 2428l V2
    Vendor
    Intel
    Product
    Xeon E5 2428l V3
    Vendor
    Intel
    Product
    Xeon E5 2430
    Vendor
    Intel
    Product
    Xeon E5 2430 V2
    Vendor
    Intel
    Product
    Xeon E5 2430l
    Vendor
    Intel
    Product
    Xeon E5 2430l V2
    Vendor
    Intel
    Product
    Xeon E5 2438l V3
    Vendor
    Intel
    Product
    Xeon E5 2440
    Vendor
    Intel
    Product
    Xeon E5 2440 V2
    Vendor
    Intel
    Product
    Xeon E5 2448l
    Vendor
    Intel
    Product
    Xeon E5 2448l V2
    Vendor
    Intel
    Product
    Xeon E5 2450
    Vendor
    Intel
    Product
    Xeon E5 2450 V2
    Vendor
    Intel
    Product
    Xeon E5 2450l
    Vendor
    Intel
    Product
    Xeon E5 2450l V2
    Vendor
    Intel
    Product
    Xeon E5 2470
    Vendor
    Intel
    Product
    Xeon E5 2470 V2
    Vendor
    Intel
    Product
    Xeon E5 2603
    Vendor
    Intel
    Product
    Xeon E5 2603 V2
    Vendor
    Intel
    Product
    Xeon E5 2603 V3
    Vendor
    Intel
    Product
    Xeon E5 2603 V4
    Vendor
    Intel
    Product
    Xeon E5 2608l V3
    Vendor
    Intel
    Product
    Xeon E5 2608l V4
    Vendor
    Intel
    Product
    Xeon E5 2609
    Vendor
    Intel
    Product
    Xeon E5 2609 V2
    Vendor
    Intel
    Product
    Xeon E5 2609 V3
    Vendor
    Intel
    Product
    Xeon E5 2609 V4
    Vendor
    Intel
    Product
    Xeon E5 2618l V2
    Vendor
    Intel
    Product
    Xeon E5 2618l V3
    Vendor
    Intel
    Product
    Xeon E5 2618l V4
    Vendor
    Intel
    Product
    Xeon E5 2620
    Vendor
    Intel
    Product
    Xeon E5 2620 V2
    Vendor
    Intel
    Product
    Xeon E5 2620 V3
    Vendor
    Intel
    Product
    Xeon E5 2620 V4
    Vendor
    Intel
    Product
    Xeon E5 2623 V3
    Vendor
    Intel
    Product
    Xeon E5 2623 V4
    Vendor
    Intel
    Product
    Xeon E5 2628l V2
    Vendor
    Intel
    Product
    Xeon E5 2628l V3
    Vendor
    Intel
    Product
    Xeon E5 2628l V4
    Vendor
    Intel
    Product
    Xeon E5 2630
    Vendor
    Intel
    Product
    Xeon E5 2630 V2
    Vendor
    Intel
    Product
    Xeon E5 2630 V3
    Vendor
    Intel
    Product
    Xeon E5 2630 V4
    Vendor
    Intel
    Product
    Xeon E5 2630l
    Vendor
    Intel
    Product
    Xeon E5 2630l V2
    Vendor
    Intel
    Product
    Xeon E5 2630l V3
    Vendor
    Intel
    Product
    Xeon E5 2630l V4
    Vendor
    Intel
    Product
    Xeon E5 2637
    Vendor
    Intel
    Product
    Xeon E5 2637 V2
    Vendor
    Intel
    Product
    Xeon E5 2637 V3
    Vendor
    Intel
    Product
    Xeon E5 2637 V4
    Vendor
    Intel
    Product
    Xeon E5 2640
    Vendor
    Intel
    Product
    Xeon E5 2640 V2
    Vendor
    Intel
    Product
    Xeon E5 2640 V3
    Vendor
    Intel
    Product
    Xeon E5 2640 V4
    Vendor
    Intel
    Product
    Xeon E5 2643
    Vendor
    Intel
    Product
    Xeon E5 2643 V2
    Vendor
    Intel
    Product
    Xeon E5 2643 V3
    Vendor
    Intel
    Product
    Xeon E5 2643 V4
    Vendor
    Intel
    Product
    Xeon E5 2648l
    Vendor
    Intel
    Product
    Xeon E5 2648l V2
    Vendor
    Intel
    Product
    Xeon E5 2648l V3
    Vendor
    Intel
    Product
    Xeon E5 2648l V4
    Vendor
    Intel
    Product
    Xeon E5 2650
    Vendor
    Intel
    Product
    Xeon E5 2650 V2
    Vendor
    Intel
    Product
    Xeon E5 2650 V3
    Vendor
    Intel
    Product
    Xeon E5 2650 V4
    Vendor
    Intel
    Product
    Xeon E5 2650l
    Vendor
    Intel
    Product
    Xeon E5 2650l V2
    Vendor
    Intel
    Product
    Xeon E5 2650l V3
    Vendor
    Intel
    Product
    Xeon E7
    Vendor
    Intel
    Product
    Xeon Gold
    Vendor
    Intel
    Product
    Xeon Platinum
    Vendor
    Intel
    Product
    Xeon Silver

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-116 Excavation
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-169 Footprinting
    CAPEC-189 Black Box Reverse Engineering
    CAPEC-22 Exploiting Trust in Client
    CAPEC-224 Fingerprinting
    CAPEC-285 ICMP Echo Request Ping
    CAPEC-287 TCP SYN Scan
    CAPEC-290 Enumerate Mail Exchange (MX) Records
    CAPEC-291 DNS Zone Transfers
    CAPEC-292 Host Discovery
    CAPEC-293 Traceroute Route Enumeration
    CAPEC-294 ICMP Address Mask Request
    CAPEC-295 Timestamp Request
    CAPEC-296 ICMP Information Request
    CAPEC-297 TCP ACK Ping
    CAPEC-298 UDP Ping
    CAPEC-299 TCP SYN Ping
    CAPEC-300 Port Scanning
    CAPEC-301 TCP Connect Scan
    CAPEC-302 TCP FIN Scan
    CAPEC-303 TCP Xmas Scan
    CAPEC-304 TCP Null Scan
    CAPEC-305 TCP ACK Scan
    CAPEC-306 TCP Window Scan
    CAPEC-307 TCP RPC Scan
    CAPEC-308 UDP Scan
    CAPEC-309 Network Topology Mapping
    CAPEC-310 Scanning for Vulnerable Software
    CAPEC-312 Active OS Fingerprinting
    CAPEC-313 Passive OS Fingerprinting
    CAPEC-317 IP ID Sequencing Probe
    CAPEC-318 IP 'ID' Echoed Byte-Order Probe
    CAPEC-319 IP (DF) 'Don't Fragment Bit' Echoing Probe
    CAPEC-320 TCP Timestamp Probe
    CAPEC-321 TCP Sequence Number Probe
    CAPEC-322 TCP (ISN) Greatest Common Divisor Probe
    CAPEC-323 TCP (ISN) Counter Rate Probe
    CAPEC-324 TCP (ISN) Sequence Predictability Probe
    CAPEC-325 TCP Congestion Control Flag (ECN) Probe
    CAPEC-326 TCP Initial Window Size Probe
    CAPEC-327 TCP Options Probe
    CAPEC-328 TCP 'RST' Flag Checksum Probe
    CAPEC-329 ICMP Error Message Quoting Probe
    CAPEC-330 ICMP Error Message Echoing Integrity Probe
    CAPEC-472 Browser Fingerprinting
    CAPEC-497 File Discovery
    CAPEC-508 Shoulder Surfing
    CAPEC-573 Process Footprinting
    CAPEC-574 Services Footprinting
    CAPEC-575 Account Footprinting
    CAPEC-576 Group Permission Footprinting
    CAPEC-577 Owner Footprinting
    CAPEC-59 Session Credential Falsification through Prediction
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-616 Establish Rogue Location
    CAPEC-643 Identify Shared Files/Directories on System
    CAPEC-646 Peripheral Footprinting
    CAPEC-651 Eavesdropping
    CAPEC-680 Exploitation of Improperly Controlled Registers
    CAPEC-79 Using Slashes in Alternate Encoding

    Related CVEs

    CVE-2025-54515 (CVSS 1) — The Secure Flag passed to Versal™ Adaptive SoC’s Trusted Firmware for Cortex®-A processors (TF-A) for Arm’s Po…
    CVE-2018-3693 (CVSS 5.6) — Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disc…
    CVE-2018-3639 (CVSS 5.5) — Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before …
    CVE-2018-9056 (CVSS 5.6) — Systems with microprocessors utilizing speculative execution may allow unauthorized disclosure of information …
    CVE-2017-5754 (CVSS 5.6) — Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthor…
    CVE-2017-5715 (CVSS 5.6) — Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthor…

    References

    http://support.lenovo.com/us/en/solutions/LEN-22133
    http://www.fujitsu.com/global/support/products/software/security/products-f/cve-2018-3639e.html
    http://www.securityfocus.com/bid/104228
    http://www.securitytracker.com/id/1040949
    http://www.securitytracker.com/id/1042004
    https://cert-portal.siemens.com/productcert/pdf/ssa-268644.pdf
    https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf
    https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
    https://lists.debian.org/debian-lts-announce/2018/07/msg00038.html
    https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html
    https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV180013
    https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0005
    https://security.netapp.com/advisory/ntap-20180521-0001/
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03850en_us
    https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180521-cpusidechannel
    https://usn.ubuntu.com/3756-1/
    https://www.debian.org/security/2018/dsa-4273
    https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.html
    https://www.kb.cert.org/vuls/id/180049
    https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-18-0006
    https://www.synology.com/support/security/Synology_SA_18_23
    https://www.us-cert.gov/ncas/alerts/TA18-141A
    http://support.lenovo.com/us/en/solutions/LEN-22133
    http://www.fujitsu.com/global/support/products/software/security/products-f/cve-2018-3639e.html
    http://www.securityfocus.com/bid/104228
    http://www.securitytracker.com/id/1040949
    http://www.securitytracker.com/id/1042004
    https://cert-portal.siemens.com/productcert/pdf/ssa-268644.pdf
    https://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf
    https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
    https://lists.debian.org/debian-lts-announce/2018/07/msg00038.html
    https://lists.debian.org/debian-lts-announce/2018/09/msg00017.html
    https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV180013
    https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0005
    https://security.netapp.com/advisory/ntap-20180521-0001/
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03850en_us
    https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180521-cpusidechannel
    https://usn.ubuntu.com/3756-1/
    https://www.debian.org/security/2018/dsa-4273
    https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.html
    https://www.kb.cert.org/vuls/id/180049
    https://www.mitel.com/en-ca/support/security-advisories/mitel-product-security-advisory-18-0006
    https://www.synology.com/support/security/Synology_SA_18_23
    https://www.us-cert.gov/ncas/alerts/TA18-141A

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High