CVE & CISA-KEV CatalogNVD
CVE-2018-3646
MEDIUMEPSS 94th pctl5.6
CVSS v3
Description
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.
How to fix
Remediation Available
intel-microcodeDebian
Fixed in:3.20180703.1CVE-2018-3646
Fixed in:3.20180703.1CVE-2018-3646
Fixed in:3.20180703.1CVE-2018-3646
Fixed in:3.20180703.1CVE-2018-3646
intel-microcodeUbuntu
Fixed in:3.20180807a.0ubuntu0.14.04.1USN-3756-1
Fixed in:3.20180807a.0ubuntu0.16.04.1USN-3756-1
Fixed in:3.20180807a.0ubuntu0.18.04.1USN-3756-1
linuxUbuntu
linux-awsUbuntu
linux-azureUbuntu
Fixed in:4.15.0-1021.21~16.04.1USN-3740-2
Fixed in:4.15.0-1021.21USN-3740-1
linux-gcpUbuntu
Fixed in:4.15.0-1017.18~16.04.1USN-3740-2
Fixed in:4.15.0-1017.18USN-3740-1
linux-hweUbuntu
Fixed in:4.15.0-32.35~16.04.1USN-3740-2
linux-image-3.13.0-155-genericUbuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-3.13.0-155-generic-lpaeUbuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-3.13.0-155-lowlatencyUbuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-3.13.0-155-powerpc-e500Ubuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-3.13.0-155-powerpc-e500mcUbuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-3.13.0-155-powerpc-smpUbuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-3.13.0-155-powerpc64-embUbuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-3.13.0-155-powerpc64-smpUbuntu
Fixed in:3.13.0-155.205USN-3742-1
linux-image-4.15.0-1017-gcpUbuntu
Fixed in:4.15.0-1017.18~16.04.1USN-3740-2
Fixed in:4.15.0-1017.18USN-3740-1
linux-image-4.15.0-1019-awsUbuntu
Fixed in:4.15.0-1019.19USN-3740-1
linux-image-4.15.0-1019-kvmUbuntu
Fixed in:4.15.0-1019.19USN-3740-1
linux-image-4.15.0-1020-raspi2Ubuntu
Fixed in:4.15.0-1020.22USN-3740-1
linux-image-4.15.0-32-genericUbuntu
Fixed in:4.15.0-32.35~16.04.1USN-3740-2
Fixed in:4.15.0-32.35USN-3740-1
linux-image-4.15.0-32-generic-lpaeUbuntu
Fixed in:4.15.0-32.35~16.04.1USN-3740-2
Fixed in:4.15.0-32.35USN-3740-1
linux-image-4.15.0-32-lowlatencyUbuntu
Fixed in:4.15.0-32.35~16.04.1USN-3740-2
Fixed in:4.15.0-32.35USN-3740-1
linux-image-4.15.0-32-snapdragonUbuntu
Fixed in:4.15.0-32.35USN-3740-1
linux-image-4.4.0-1027-awsUbuntu
Fixed in:4.4.0-1027.30USN-3741-2
linux-image-4.4.0-1031-kvmUbuntu
Fixed in:4.4.0-1031.37USN-3741-1
linux-image-4.4.0-1065-awsUbuntu
Fixed in:4.4.0-1065.75USN-3741-1
linux-image-4.4.0-1094-raspi2Ubuntu
Fixed in:4.4.0-1094.102USN-3741-1
linux-image-4.4.0-1098-snapdragonUbuntu
Fixed in:4.4.0-1098.103USN-3741-1
linux-image-4.4.0-133-genericUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
Fixed in:4.4.0-133.159USN-3741-1
linux-image-4.4.0-133-generic-lpaeUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
Fixed in:4.4.0-133.159USN-3741-1
linux-image-4.4.0-133-lowlatencyUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
Fixed in:4.4.0-133.159USN-3741-1
linux-image-4.4.0-133-powerpc-e500mcUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
Fixed in:4.4.0-133.159USN-3741-1
linux-image-4.4.0-133-powerpc-smpUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
Fixed in:4.4.0-133.159USN-3741-1
linux-image-4.4.0-133-powerpc64-embUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
Fixed in:4.4.0-133.159USN-3741-1
linux-image-4.4.0-133-powerpc64-smpUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
Fixed in:4.4.0-133.159USN-3741-1
linux-kvmUbuntu
Fixed in:4.4.0-1031.37USN-3741-1
Fixed in:4.15.0-1019.19USN-3740-1
linux-lts-xenialUbuntu
Fixed in:4.4.0-133.159~14.04.1USN-3741-2
linux-oemUbuntu
Fixed in:4.15.0-1015.18USN-3740-1
linux-raspi2Ubuntu
Fixed in:4.4.0-1094.102USN-3741-1
Fixed in:4.15.0-1020.22USN-3740-1
linux-snapdragonUbuntu
Fixed in:4.4.0-1098.103USN-3741-1
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeChanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Exploit Intelligence
8.10%probability of exploitation in 30 days
94thpercentile
High risk: more likely to be exploited than 94% of all known CVEs.
References
Vendor Advisory1
Third-Party Advisory32
- support.lenovo.com
- huawei.com
- securityfocus.com
- securitytracker.com
- vmware.com
- xenbits.xen.org
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- access.redhat.com
- foreshadowattack.eu
- psirt.global.sonicwall.com
- security.freebsd.org
- security.netapp.com
- support.f5.com
- support.hpe.com
- tools.cisco.com
- usn.ubuntu.com
- usn.ubuntu.com
- usn.ubuntu.com
- usn.ubuntu.com
- usn.ubuntu.com
Other references17
- securitytracker.com
- access.redhat.com
- access.redhat.com
- cert-portal.siemens.com
- cert-portal.siemens.com
- help.ecostruxureit.com
- lists.debian.org
- lists.debian.org
- lists.fedoraproject.org
- lists.fedoraproject.org
- portal.msrc.microsoft.com
- security.gentoo.org
- usn.ubuntu.com
- usn.ubuntu.com
- usn.ubuntu.com
- debian.org
- debian.org
Related Vulnerabilities
Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2024-24919 | High | 8.6 | 100% | KEV + Ransom | - |
| CVE-2020-14181 | Medium | 5.3 | 100% | - | Fix |
| CVE-2021-34429 | Medium | 5.3 | 99% | - | Fix |
| CVE-2018-11409 | Medium | 5.3 | 98% | - | - |
| CVE-2021-41277 | Critical | 10.0 | 97% | KEV | - |
| CVE-2016-2183 | High | 7.5 | 96% | - | Fix |
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-29.