Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2018-3620

Observable Discrepancy

Published: Aug 14, 2018 | Modified: Nov 21, 2024
CVSS 3.x
5.6
MEDIUM
Source:
NVD
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS 2.x
4.7 MEDIUM
AV:L/AC:M/Au:N/C:C/I:N/A:N
RedHat/V2
RedHat/V3
5.6 IMPORTANT
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Ubuntu
HIGH
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-3620
CWEhttps://cwe.mitre.org/data/definitions/203.html

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 via a terminal page fault and a side-channel analysis.

Weakness

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

Affected Software

NameVendorStart VersionEnd Version
Core_i3Intel330e (including)330e (including)
Core_i3Intel330m (including)330m (including)
Core_i3Intel330um (including)330um (including)
Core_i3Intel350m (including)350m (including)
Core_i3Intel370m (including)370m (including)
Core_i3Intel380m (including)380m (including)
Core_i3Intel380um (including)380um (including)
Core_i3Intel390m (including)390m (including)
Core_i3Intel530 (including)530 (including)
Core_i3Intel540 (including)540 (including)
Core_i3Intel550 (including)550 (including)
Core_i3Intel560 (including)560 (including)
Core_i3Intel2100 (including)2100 (including)
Core_i3Intel2100t (including)2100t (including)
Core_i3Intel2102 (including)2102 (including)
Core_i3Intel2105 (including)2105 (including)
Core_i3Intel2115c (including)2115c (including)
Core_i3Intel2120 (including)2120 (including)
Core_i3Intel2120t (including)2120t (including)
Core_i3Intel2125 (including)2125 (including)
Core_i3Intel2130 (including)2130 (including)
Core_i3Intel2310e (including)2310e (including)
Core_i3Intel2310m (including)2310m (including)
Core_i3Intel2312m (including)2312m (including)
Core_i3Intel2328m (including)2328m (including)
Core_i3Intel2330e (including)2330e (including)
Core_i3Intel2330m (including)2330m (including)
Core_i3Intel2340ue (including)2340ue (including)
Core_i3Intel2348m (including)2348m (including)
Core_i3Intel2350m (including)2350m (including)
Core_i3Intel2357m (including)2357m (including)
Core_i3Intel2365m (including)2365m (including)
Core_i3Intel2367m (including)2367m (including)
Core_i3Intel2370m (including)2370m (including)
Core_i3Intel2375m (including)2375m (including)
Core_i3Intel2377m (including)2377m (including)
Core_i3Intel3110m (including)3110m (including)
Core_i3Intel3115c (including)3115c (including)
Core_i3Intel3120m (including)3120m (including)
Core_i3Intel3120me (including)3120me (including)
Core_i3Intel3130m (including)3130m (including)
Core_i3Intel3210 (including)3210 (including)
Core_i3Intel3217u (including)3217u (including)
Core_i3Intel3217ue (including)3217ue (including)
Core_i3Intel3220 (including)3220 (including)
Core_i3Intel3220t (including)3220t (including)
Core_i3Intel3225 (including)3225 (including)
Core_i3Intel3227u (including)3227u (including)
Core_i3Intel3229y (including)3229y (including)
Core_i3Intel3240 (including)3240 (including)
Core_i3Intel3240t (including)3240t (including)
Core_i3Intel3245 (including)3245 (including)
Core_i3Intel3250 (including)3250 (including)
Core_i3Intel3250t (including)3250t (including)
Core_i3Intel4000m (including)4000m (including)
Core_i3Intel4005u (including)4005u (including)
Core_i3Intel4010u (including)4010u (including)
Core_i3Intel4010y (including)4010y (including)
Core_i3Intel4012y (including)4012y (including)
Core_i3Intel4020y (including)4020y (including)
Core_i3Intel4025u (including)4025u (including)
Core_i3Intel4030u (including)4030u (including)
Core_i3Intel4030y (including)4030y (including)
Core_i3Intel4100e (including)4100e (including)
Core_i3Intel4100m (including)4100m (including)
Core_i3Intel4100u (including)4100u (including)
Core_i3Intel4102e (including)4102e (including)
Core_i3Intel4110e (including)4110e (including)
Core_i3Intel4110m (including)4110m (including)
Core_i3Intel4112e (including)4112e (including)
Core_i3Intel4120u (including)4120u (including)
Core_i3Intel4130 (including)4130 (including)
Core_i3Intel4130t (including)4130t (including)
Core_i3Intel4150 (including)4150 (including)
Core_i3Intel4150t (including)4150t (including)
Core_i3Intel4158u (including)4158u (including)
Core_i3Intel4160 (including)4160 (including)
Core_i3Intel4160t (including)4160t (including)
Core_i3Intel4170 (including)4170 (including)
Core_i3Intel4170t (including)4170t (including)
Core_i3Intel4330 (including)4330 (including)
Core_i3Intel4330t (including)4330t (including)
Core_i3Intel4330te (including)4330te (including)
Core_i3Intel4340 (including)4340 (including)
Core_i3Intel4340te (including)4340te (including)
Core_i3Intel4350 (including)4350 (including)
Core_i3Intel4350t (including)4350t (including)
Core_i3Intel4360 (including)4360 (including)
Core_i3Intel4360t (including)4360t (including)
Core_i3Intel4370 (including)4370 (including)
Core_i3Intel4370t (including)4370t (including)
Core_i3Intel5005u (including)5005u (including)
Core_i3Intel5010u (including)5010u (including)
Core_i3Intel5015u (including)5015u (including)
Core_i3Intel5020u (including)5020u (including)
Core_i3Intel5157u (including)5157u (including)
Core_i3Intel6006u (including)6006u (including)
Core_i3Intel6098p (including)6098p (including)
Core_i3Intel6100 (including)6100 (including)
Core_i3Intel6100e (including)6100e (including)
Core_i3Intel6100h (including)6100h (including)
Core_i3Intel6100t (including)6100t (including)
Core_i3Intel6100te (including)6100te (including)
Core_i3Intel6100u (including)6100u (including)
Core_i3Intel6102e (including)6102e (including)
Core_i3Intel6157u (including)6157u (including)
Core_i3Intel6167u (including)6167u (including)
Core_i3Intel6300 (including)6300 (including)
Core_i3Intel6300t (including)6300t (including)
Core_i3Intel6320 (including)6320 (including)
Core_i3Intel8100 (including)8100 (including)
Core_i3Intel8350k (including)8350k (including)
Red Hat Enterprise Linux 5.9 Long LifeRedHatkernel-0:2.6.18-348.41.1.el5*
Red Hat Enterprise Linux 5 Extended Lifecycle SupportRedHatkernel-0:2.6.18-434.el5*
Red Hat Enterprise Linux 6RedHatkernel-0:2.6.32-754.3.5.el6*
Red Hat Enterprise Linux 6.4 Advanced Update SupportRedHatkernel-0:2.6.32-358.91.4.el6*
Red Hat Enterprise Linux 6.5 Advanced Update SupportRedHatkernel-0:2.6.32-431.91.3.el6*
Red Hat Enterprise Linux 6.6 Advanced Update SupportRedHatkernel-0:2.6.32-504.72.4.el6*
Red Hat Enterprise Linux 6.6 Telco Extended Update SupportRedHatkernel-0:2.6.32-504.72.4.el6*
Red Hat Enterprise Linux 6.7 Extended Update SupportRedHatkernel-0:2.6.32-573.60.4.el6*
Red Hat Enterprise Linux 7RedHatkernel-rt-0:3.10.0-862.11.6.rt56.819.el7*
Red Hat Enterprise Linux 7RedHatkernel-0:3.10.0-862.11.6.el7*
Red Hat Enterprise Linux 7.2 Advanced Update SupportRedHatkernel-0:3.10.0-327.71.4.el7*
Red Hat Enterprise Linux 7.2 Telco Extended Update SupportRedHatkernel-0:3.10.0-327.71.4.el7*
Red Hat Enterprise Linux 7.2 Update Services for SAP SolutionsRedHatkernel-0:3.10.0-327.71.4.el7*
Red Hat Enterprise Linux 7.3 Extended Update SupportRedHatkernel-0:3.10.0-514.55.4.el7*
Red Hat Enterprise Linux 7.4 Extended Update SupportRedHatkernel-0:3.10.0-693.37.4.el7*
Red Hat Enterprise MRG 2RedHatkernel-rt-1:3.10.0-693.37.4.rt56.629.el6rt*
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7RedHatrhvm-appliance-0:4.2-20180813.0*
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7RedHatredhat-release-virtualization-host-0:4.2-5.2.el7*
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7RedHatredhat-virtualization-host-0:4.2-20180813.0*
RHEV 3.X Hypervisor and Agents for RHEL-6RedHatrhev-hypervisor7-0:7.3-20180813.0.el6ev*
RHEV 3.X Hypervisor and Agents for RHEL-7 ELSRedHatrhev-hypervisor7-0:7.3-20180813.0.el7ev*
LinuxUbuntubionic*
LinuxUbuntuesm-infra-legacy/trusty*
LinuxUbuntuesm-infra/bionic*
LinuxUbuntuesm-infra/xenial*
LinuxUbuntutrusty*
LinuxUbuntutrusty/esm*
LinuxUbuntuupstream*
LinuxUbuntuxenial*
Linux-awsUbuntubionic*
Linux-awsUbuntuesm-infra-legacy/trusty*
Linux-awsUbuntuesm-infra/bionic*
Linux-awsUbuntuesm-infra/xenial*
Linux-awsUbuntutrusty*
Linux-awsUbuntutrusty/esm*
Linux-awsUbuntuupstream*
Linux-awsUbuntuxenial*
Linux-aws-5.15Ubuntuupstream*
Linux-aws-5.4Ubuntuupstream*
Linux-aws-6.8Ubuntuupstream*
Linux-aws-fipsUbuntutrusty*
Linux-aws-fipsUbuntuupstream*
Linux-aws-fipsUbuntuxenial*
Linux-aws-hweUbuntuupstream*
Linux-azureUbuntubionic*
Linux-azureUbuntuesm-infra/bionic*
Linux-azureUbuntuesm-infra/xenial*
Linux-azureUbuntuupstream*
Linux-azureUbuntuxenial*
Linux-azure-4.15Ubuntuupstream*
Linux-azure-5.15Ubuntuupstream*
Linux-azure-5.4Ubuntuupstream*
Linux-azure-6.8Ubuntuupstream*
Linux-azure-edgeUbuntubionic*
Linux-azure-edgeUbuntuesm-infra/bionic*
Linux-azure-edgeUbuntuupstream*
Linux-azure-fdeUbuntuesm-infra/focal*
Linux-azure-fdeUbuntufocal*
Linux-azure-fdeUbuntuupstream*
Linux-azure-fde-5.15Ubuntuupstream*
Linux-azure-fipsUbuntutrusty*
Linux-azure-fipsUbuntuupstream*
Linux-azure-fipsUbuntuxenial*
Linux-bluefieldUbuntuupstream*
Linux-euclidUbuntuupstream*
Linux-euclidUbuntuxenial*
Linux-fipsUbuntufips-updates/xenial*
Linux-fipsUbuntufips/xenial*
Linux-fipsUbuntuupstream*
Linux-floUbuntutrusty*
Linux-floUbuntuxenial*
Linux-gcpUbuntubionic*
Linux-gcpUbuntuesm-infra/bionic*
Linux-gcpUbuntuesm-infra/xenial*
Linux-gcpUbuntuupstream*
Linux-gcpUbuntuxenial*
Linux-gcp-4.15Ubuntuupstream*
Linux-gcp-5.15Ubuntuupstream*
Linux-gcp-5.4Ubuntuupstream*
Linux-gcp-6.8Ubuntuupstream*
Linux-gcp-edgeUbuntuupstream*
Linux-gcp-fipsUbuntutrusty*
Linux-gcp-fipsUbuntuupstream*
Linux-gcp-fipsUbuntuxenial*
Linux-gkeUbuntuesm-infra/focal*
Linux-gkeUbuntufocal*
Linux-gkeUbuntuupstream*
Linux-gkeUbuntuxenial*
Linux-gkeopUbuntuupstream*
Linux-gkeop-5.15Ubuntuupstream*
Linux-goldfishUbuntutrusty*
Linux-goldfishUbuntuupstream*
Linux-goldfishUbuntuxenial*
Linux-grouperUbuntutrusty*
Linux-hweUbuntuesm-infra/xenial*
Linux-hweUbuntuupstream*
Linux-hweUbuntuxenial*
Linux-hwe-5.15Ubuntuupstream*
Linux-hwe-5.4Ubuntuupstream*
Linux-hwe-6.8Ubuntuupstream*
Linux-hwe-edgeUbuntuesm-infra/xenial*
Linux-hwe-edgeUbuntuupstream*
Linux-hwe-edgeUbuntuxenial*
Linux-ibmUbuntuupstream*
Linux-ibm-5.15Ubuntuupstream*
Linux-ibm-5.4Ubuntuupstream*
Linux-intelUbuntuupstream*
Linux-intel-iot-realtimeUbuntujammy*
Linux-intel-iot-realtimeUbuntuupstream*
Linux-intel-iotgUbuntuupstream*
Linux-intel-iotg-5.15Ubuntuupstream*
Linux-iotUbuntuupstream*
Linux-kvmUbuntubionic*
Linux-kvmUbuntuesm-infra/bionic*
Linux-kvmUbuntuesm-infra/xenial*
Linux-kvmUbuntuupstream*
Linux-kvmUbuntuxenial*
Linux-lowlatencyUbuntuupstream*
Linux-lowlatency-hwe-5.15Ubuntuupstream*
Linux-lowlatency-hwe-6.8Ubuntuupstream*
Linux-lts-trustyUbuntuupstream*
Linux-lts-utopicUbuntutrusty*
Linux-lts-utopicUbuntuupstream*
Linux-lts-vividUbuntutrusty*
Linux-lts-vividUbuntuupstream*
Linux-lts-wilyUbuntutrusty*
Linux-lts-wilyUbuntuupstream*
Linux-lts-xenialUbuntuesm-infra-legacy/trusty*
Linux-lts-xenialUbuntutrusty*
Linux-lts-xenialUbuntutrusty/esm*
Linux-lts-xenialUbuntuupstream*
Linux-maguroUbuntutrusty*
Linux-makoUbuntutrusty*
Linux-makoUbuntuxenial*
Linux-mantaUbuntutrusty*
Linux-nvidiaUbuntuupstream*
Linux-nvidia-6.5Ubuntuupstream*
Linux-nvidia-6.8Ubuntuupstream*
Linux-nvidia-lowlatencyUbuntuupstream*
Linux-oemUbuntubionic*
Linux-oemUbuntuesm-infra/bionic*
Linux-oemUbuntuupstream*
Linux-oemUbuntuxenial*
Linux-oem-6.11Ubuntuupstream*
Linux-oem-6.8Ubuntuupstream*
Linux-oracleUbuntuupstream*
Linux-oracle-5.15Ubuntuupstream*
Linux-oracle-5.4Ubuntuupstream*
Linux-oracle-6.8Ubuntuupstream*
Linux-raspiUbuntuupstream*
Linux-raspi-5.4Ubuntuupstream*
Linux-raspi-realtimeUbuntunoble*
Linux-raspi-realtimeUbuntuupstream*
Linux-raspi2Ubuntuesm-infra/focal*
Linux-raspi2Ubuntufocal*
Linux-realtimeUbuntujammy*
Linux-realtimeUbuntuupstream*
Linux-riscvUbuntuesm-infra/focal*
Linux-riscvUbuntufocal*
Linux-riscvUbuntujammy*
Linux-riscvUbuntuupstream*
Linux-riscv-5.15Ubuntuupstream*
Linux-riscv-6.8Ubuntuupstream*
Linux-xilinx-zynqmpUbuntuupstream*

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
  • Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success.
  • If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files.
  • Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.

References

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