CVE-2018-3620
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
02 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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 5.57% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 92.5% of scored records. A rank, not a probability.
- NVD base score
- 5.6 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-08-14 19:00Z8 YR AGO
- Last updated
- 2026-05-29 20:11Z5 MO AGO
- Reserved
- 2017-12-28
- Assigning CNA
- intel
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.6)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- Weaknesses
- Data version
- 5.2
- Document digest
- 424f9f044743a9390886e18cd97022131a8d8c989a3ae83cd64d583d5caf89dd
05 Affected products
06 References
- www.kb.cert.orgVU#982149https://www.kb.cert.org/vuls/id/982149
- www.securitytracker.com1041451http://www.securitytracker.com/id/1041451
- security.gentoo.orgGLSA-201810-06https://security.gentoo.org/glsa/201810-06
- usn.ubuntu.comUSN-3741-2https://usn.ubuntu.com/3741-2/
- access.redhat.comRHSA-2018:2393https://access.redhat.com/errata/RHSA-2018:2393
- usn.ubuntu.comUSN-3823-1https://usn.ubuntu.com/3823-1/
- access.redhat.comRHSA-2018:2389https://access.redhat.com/errata/RHSA-2018:2389
- access.redhat.comRHSA-2018:2390https://access.redhat.com/errata/RHSA-2018:2390
- access.redhat.comRHSA-2018:2403https://access.redhat.com/errata/RHSA-2018:2403
- www.securityfocus.com105080http://www.securityfocus.com/bid/105080
- access.redhat.comRHSA-2018:2395https://access.redhat.com/errata/RHSA-2018:2395
- access.redhat.comRHSA-2018:2384https://access.redhat.com/errata/RHSA-2018:2384
- usn.ubuntu.comUSN-3740-2https://usn.ubuntu.com/3740-2/
- security.freebsd.orgFreeBSD-SA-18:09https://security.FreeBSD.org/advisories/FreeBSD-SA-18:09.l1tf.asc
- www.debian.orgDSA-4274https://www.debian.org/security/2018/dsa-4274
- lists.fedoraproject.orgFEDORA-2018-1c80fea1cdhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XRFKQWYV2H4BV75CUNGCGE5TNVQCLBGZ/
- access.redhat.comRHSA-2018:2388https://access.redhat.com/errata/RHSA-2018:2388
- usn.ubuntu.comUSN-3741-1https://usn.ubuntu.com/3741-1/
- access.redhat.comRHSA-2018:2603https://access.redhat.com/errata/RHSA-2018:2603
- access.redhat.comRHSA-2018:2402https://access.redhat.com/errata/RHSA-2018:2402
- tools.cisco.com20180814 CPU Side-Channel Information Disclosure Vulnerabilities: August 2018https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180814-cpusidechannel
- lists.fedoraproject.orgFEDORA-2018-f8cba144aehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4UWGORQWCENCIF2BHWUEF2ODBV75QS2/
- usn.ubuntu.comUSN-3742-2https://usn.ubuntu.com/3742-2/
- access.redhat.comRHSA-2018:2404https://access.redhat.com/errata/RHSA-2018:2404
- usn.ubuntu.comUSN-3740-1https://usn.ubuntu.com/3740-1/
- access.redhat.comRHSA-2018:2391https://access.redhat.com/errata/RHSA-2018:2391
- access.redhat.comRHSA-2018:2396https://access.redhat.com/errata/RHSA-2018:2396
- www.debian.orgDSA-4279https://www.debian.org/security/2018/dsa-4279
- access.redhat.comRHSA-2018:2392https://access.redhat.com/errata/RHSA-2018:2392
- lists.debian.org[debian-lts-announce] 20180828 [SECURITY] [DLA 1481-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2018/08/msg00029.html
- usn.ubuntu.comUSN-3742-1https://usn.ubuntu.com/3742-1/
- access.redhat.comRHSA-2018:2602https://access.redhat.com/errata/RHSA-2018:2602
- lists.debian.org[debian-lts-announce] 20180916 [SECURITY] [DLA 1506-1] intel-microcode security updatehttps://lists.debian.org/debian-lts-announce/2018/09/msg00017.html
- access.redhat.comRHSA-2018:2394https://access.redhat.com/errata/RHSA-2018:2394
- access.redhat.comRHSA-2018:2387https://access.redhat.com/errata/RHSA-2018:2387
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.html
- www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- help.ecostruxureit.comhttps://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
- xenbits.xen.orghttp://xenbits.xen.org/xsa/advisory-273.html
- foreshadowattack.euhttps://foreshadowattack.eu/
- www.vmware.comhttp://www.vmware.com/security/advisories/VMSA-2018-0021.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20180815-0001/
- portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV180018
- support.f5.comhttps://support.f5.com/csp/article/K95275140
- support.lenovo.comhttp://support.lenovo.com/us/en/solutions/LEN-24163
- www.huawei.comhttp://www.huawei.com/en/psirt/security-advisories/huawei-sa-20180815-01-cpu-en
- www.intel.comhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00161.html
- www.synology.comhttps://www.synology.com/support/security/Synology_SA_18_45
- psirt.global.sonicwall.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0009
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-254686.pdf
- support.hpe.comhttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03874en_us
- software.intel.comhttps://software.intel.com/security-software-guidance/software-guidance/l1-terminal-fault
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-608355.pdf
07 Fixed in
Arch Linux
- linux Fixed in 4.18.1.arch1-1
- linux-lts Fixed in 4.14.63-1
- linux-zen Fixed in 4.18.1.arch1-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- intel-microcode Fixed in 3.20180703.1
- linux Fixed in 4.17.15-1
- xen Fixed in 4.11.1~pre.20180911.5acdd26fdc+dfsg-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- intel-microcode Fixed in 3.20180703.1
- linux Fixed in 4.17.15-1
- xen Fixed in 4.11.1~pre.20180911.5acdd26fdc+dfsg-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- intel-microcode Fixed in 3.20180703.1
- linux Fixed in 4.17.15-1
- xen Fixed in 4.11.1~pre.20180911.5acdd26fdc+dfsg-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-155.205
- linux-aws Fixed in 4.4.0-1027.30
- linux-lts-xenial Fixed in 4.4.0-133.159~14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-133.159
- linux-aws Fixed in 4.4.0-1065.75
- linux-azure Fixed in 4.15.0-1021.21~16.04.1
- linux-gcp Fixed in 4.15.0-1017.18~16.04.1
- linux-hwe Fixed in 4.15.0-32.35~16.04.1
- linux-kvm Fixed in 4.4.0-1031.37
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-32.35
- linux-aws Fixed in 4.15.0-1019.19
- linux-azure Fixed in 4.15.0-1021.21
- linux-gcp Fixed in 4.15.0-1017.18
- linux-kvm Fixed in 4.15.0-1019.19
- linux-oem Fixed in 4.15.0-1015.18
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-azure-fde No fix yet
- linux-gke No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1008.10Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.