CVE-2021-3669
First published: Tue Jul 27 2021(Updated: )
A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:4.18.0-372.9.1.rt7.166.el8 | 0:4.18.0-372.9.1.rt7.166.el8 |
| redhat/kernel | <0:4.18.0-372.9.1.el8 | 0:4.18.0-372.9.1.el8 |
| Linux Linux kernel | ||
| IBM Spectrum Copy Data Management | >=2.2.0.0<=2.2.15.0 | |
| IBM Spectrum Protect Plus | >=10.1.0<=10.1.10.2 | |
| Linux Linux kernel | ||
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Fedoraproject Fedora | =34 | |
| Redhat Build Of Quarkus | >=2.0<2.7 | |
| Redhat Developer Tools | =1.0 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux Aus | =8.6 | |
| Redhat Enterprise Linux For Ibm Z Systems | =8.0 | |
| Redhat Enterprise Linux For Ibm Z Systems Eus | =8.6 | |
| Redhat Enterprise Linux For Power Little Endian | =8.0 | |
| Redhat Enterprise Linux For Power Little Endian Eus | =8.6 | |
| Redhat Enterprise Linux For Real Time | =8 | |
| Redhat Enterprise Linux For Real Time For Nfv | =8 | |
| Redhat Enterprise Linux For Real Time For Nfv Tus | =8.6 | |
| Redhat Enterprise Linux For Real Time Tus | =8.6 | |
| Redhat Enterprise Linux Server Aus | =8.6 | |
| Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions | =8.6 | |
| Redhat Enterprise Linux Server Tus | =8.6 | |
| Redhat Codeready Linux Builder | ||
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux Eus | =8.6 | |
| Redhat Enterprise Linux For Power Little Endian | =8.0 | |
| Redhat Enterprise Linux For Power Little Endian Eus | =8.6 | |
| Redhat Openshift Container Platform | =4.6 | |
| Redhat Openshift Container Platform | =4.7 | |
| Redhat Openshift Container Platform | =4.9 | |
| Redhat Virtualization Host | =4.0 | |
| All of | ||
| Any of | ||
| IBM Spectrum Copy Data Management | >=2.2.0.0<=2.2.15.0 | |
| IBM Spectrum Protect Plus | >=10.1.0<=10.1.10.2 | |
| Linux Linux kernel | ||
| All of | ||
| Redhat Codeready Linux Builder | ||
| Any of | ||
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux Eus | =8.6 | |
| Redhat Enterprise Linux For Power Little Endian | =8.0 | |
| Redhat Enterprise Linux For Power Little Endian Eus | =8.6 | |
| All of | ||
| Any of | ||
| Redhat Openshift Container Platform | =4.6 | |
| Redhat Openshift Container Platform | =4.7 | |
| Redhat Openshift Container Platform | =4.9 | |
| Redhat Virtualization Host | =4.0 | |
| Redhat Enterprise Linux | =8.0 | |
| ubuntu/linux-aws | <5.4.0-1099.107 | 5.4.0-1099.107 |
| ubuntu/linux-aws | <5.15~ | 5.15~ |
| ubuntu/linux-aws | <4.15.0-1153.166 | 4.15.0-1153.166 |
| ubuntu/linux-aws | <4.4.0-1155.170 | 4.4.0-1155.170 |
| ubuntu/linux-aws | <4.4.0-1117.123 | 4.4.0-1117.123 |
| ubuntu/linux-aws-5.0 | <5.15~ | 5.15~ |
| ubuntu/linux-aws-5.11 | <5.15~ | 5.15~ |
| ubuntu/linux-aws-hwe | <5.15~ | 5.15~ |
| ubuntu/linux-aws-hwe | <4.15.0-1153.166~16.04.1 | 4.15.0-1153.166~16.04.1 |
| ubuntu/linux-azure | <5.4.0-1105.111 | 5.4.0-1105.111 |
| ubuntu/linux-azure | <5.15~ | 5.15~ |
| ubuntu/linux-azure | <4.15.0-1162.177~14.04.1 | 4.15.0-1162.177~14.04.1 |
| ubuntu/linux-azure | <4.15.0-1162.177~16.04.1 | 4.15.0-1162.177~16.04.1 |
| ubuntu/linux-azure-4.15 | <4.15.0-1162.177 | 4.15.0-1162.177 |
| ubuntu/linux-azure-4.15 | <5.15~ | 5.15~ |
| ubuntu/linux-raspi2 | <5.15~ | 5.15~ |
| ubuntu/linux-raspi2 | <4.15.0-1129.137 | 4.15.0-1129.137 |
| ubuntu/linux-raspi2-5.3 | <5.15~ | 5.15~ |
| ubuntu/linux-oem-5.13 | <5.15~ | 5.15~ |
| ubuntu/linux | <4.4.0-239.273 | 4.4.0-239.273 |
| ubuntu/linux | <4.15.0-208.220 | 4.15.0-208.220 |
| ubuntu/linux | <5.4.0-146.163 | 5.4.0-146.163 |
| ubuntu/linux | <5.15~ | 5.15~ |
| ubuntu/linux-aws-5.13 | <5.15~ | 5.15~ |
| ubuntu/linux-aws-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-aws-5.3 | <5.15~ | 5.15~ |
| ubuntu/linux-aws-5.4 | <5.15~ | 5.15~ |
| ubuntu/linux-aws-5.4 | <5.4.0-1099.107~18.04.1 | 5.4.0-1099.107~18.04.1 |
| ubuntu/linux-aws-5.8 | <5.15~ | 5.15~ |
| ubuntu/linux-azure-5.11 | <5.15~ | 5.15~ |
| ubuntu/linux-azure-5.13 | <5.15~ | 5.15~ |
| ubuntu/linux-azure-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-azure-5.3 | <5.15~ | 5.15~ |
| ubuntu/linux-azure-5.4 | <5.4.0-1105.111~18.04.1 | 5.4.0-1105.111~18.04.1 |
| ubuntu/linux-azure-5.4 | <5.15~ | 5.15~ |
| ubuntu/linux-azure-edge | <5.15~ | 5.15~ |
| ubuntu/linux-azure-fde | <5.15~ | 5.15~ |
| ubuntu/linux-azure-fde | <5.4.0-1105.111 | 5.4.0-1105.111 |
| ubuntu/linux-azure-fde-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-bluefield | <5.4.0-1060.66 | 5.4.0-1060.66 |
| ubuntu/linux-bluefield | <5.15~ | 5.15~ |
| ubuntu/linux-dell300x | <4.15.0-1062.67 | 4.15.0-1062.67 |
| ubuntu/linux-dell300x | <5.15~ | 5.15~ |
| ubuntu/linux-fips | <5.15~ | 5.15~ |
| ubuntu/linux-gcp | <5.15~ | 5.15~ |
| ubuntu/linux-gcp | <5.4.0-1102.111 | 5.4.0-1102.111 |
| ubuntu/linux-gcp | <4.15.0-1147.163~16.04.1 | 4.15.0-1147.163~16.04.1 |
| ubuntu/linux-gcp-4.15 | <5.15~ | 5.15~ |
| ubuntu/linux-gcp-4.15 | <4.15.0-1147.163 | 4.15.0-1147.163 |
| ubuntu/linux-gcp-5.11 | <5.15~ | 5.15~ |
| ubuntu/linux-gcp-5.13 | <5.15~ | 5.15~ |
| ubuntu/linux-gcp-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-gcp-5.3 | <5.15~ | 5.15~ |
| ubuntu/linux-gcp-5.4 | <5.4.0-1102.111~18.04.2 | 5.4.0-1102.111~18.04.2 |
| ubuntu/linux-gcp-5.8 | <5.15~ | 5.15~ |
| ubuntu/linux-gcp-edge | <5.15~ | 5.15~ |
| ubuntu/linux-gke | <5.15~ | 5.15~ |
| ubuntu/linux-gke | <5.4.0-1096.103 | 5.4.0-1096.103 |
| ubuntu/linux-gke-4.15 | <5.15~ | 5.15~ |
| ubuntu/linux-gke-5.0 | <5.15~ | 5.15~ |
| ubuntu/linux-gke-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-gke-5.3 | <5.15~ | 5.15~ |
| ubuntu/linux-gke-5.4 | <5.15~ | 5.15~ |
| ubuntu/linux-gkeop | <5.4.0-1066.70 | 5.4.0-1066.70 |
| ubuntu/linux-gkeop | <5.15~ | 5.15~ |
| ubuntu/linux-gkeop-5.4 | <5.15~ | 5.15~ |
| ubuntu/linux-hwe | <5.15~ | 5.15~ |
| ubuntu/linux-hwe | <4.15.0-208.219~16.04.1 | 4.15.0-208.219~16.04.1 |
| ubuntu/linux-hwe-5.11 | <5.15~ | 5.15~ |
| ubuntu/linux-hwe-5.13 | <5.15~ | 5.15~ |
| ubuntu/linux-hwe-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-hwe-5.4 | <5.4.0-146.163~18.04.1 | 5.4.0-146.163~18.04.1 |
| ubuntu/linux-hwe-5.4 | <5.15~ | 5.15~ |
| ubuntu/linux-hwe-5.8 | <5.15~ | 5.15~ |
| ubuntu/linux-hwe-edge | <5.15~ | 5.15~ |
| ubuntu/linux-ibm | <5.4.0-1046.51 | 5.4.0-1046.51 |
| ubuntu/linux-ibm | <5.15~ | 5.15~ |
| ubuntu/linux-ibm-5.4 | <5.4.0-1046.51~18.04.1 | 5.4.0-1046.51~18.04.1 |
| ubuntu/linux-ibm-5.4 | <5.15~ | 5.15~ |
| ubuntu/linux-intel-5.13 | <5.15~ | 5.15~ |
| ubuntu/linux-intel-iotg | <5.15~ | 5.15~ |
| ubuntu/linux-intel-iotg-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-kvm | <4.15.0-1137.142 | 4.15.0-1137.142 |
| ubuntu/linux-kvm | <5.4.0-1088.94 | 5.4.0-1088.94 |
| ubuntu/linux-kvm | <5.15~ | 5.15~ |
| ubuntu/linux-kvm | <4.4.0-1118.128 | 4.4.0-1118.128 |
| ubuntu/linux-lowlatency | <5.15~ | 5.15~ |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-lowlatency-hwe-5.19 | <5.15~ | 5.15~ |
| ubuntu/linux-lts-xenial | <5.15~ | 5.15~ |
| ubuntu/linux-lts-xenial | <4.4.0-239.273~14.04.1 | 4.4.0-239.273~14.04.1 |
| ubuntu/linux-oem | <5.15~ | 5.15~ |
| ubuntu/linux-oem-5.10 | <5.15~ | 5.15~ |
| ubuntu/linux-oem-5.17 | <5.15~ | 5.15~ |
| ubuntu/linux-oem-5.6 | <5.15~ | 5.15~ |
| ubuntu/linux-oem-6.0 | <5.15~ | 5.15~ |
| ubuntu/linux-oem-6.1 | <5.15~ | 5.15~ |
| ubuntu/linux-oem-osp1 | <5.15~ | 5.15~ |
| ubuntu/linux-oracle | <5.4.0-1098.107 | 5.4.0-1098.107 |
| ubuntu/linux-oracle | <5.15~ | 5.15~ |
| ubuntu/linux-oracle | <4.15.0-1116.127~16.04.1 | 4.15.0-1116.127~16.04.1 |
| ubuntu/linux-oracle | <4.15.0-1116.127 | 4.15.0-1116.127 |
| ubuntu/linux-oracle-5.0 | <5.15~ | 5.15~ |
| ubuntu/linux-oracle-5.11 | <5.15~ | 5.15~ |
| ubuntu/linux-oracle-5.13 | <5.15~ | 5.15~ |
| ubuntu/linux-oracle-5.15 | <5.15~ | 5.15~ |
| ubuntu/linux-oracle-5.3 | <5.15~ | 5.15~ |
| ubuntu/linux-oracle-5.4 | <5.4.0-1098.107~18.04.1 | 5.4.0-1098.107~18.04.1 |
| ubuntu/linux-raspi | <5.4.0-1082.93 | 5.4.0-1082.93 |
| ubuntu/linux-raspi | <5.15~ | 5.15~ |
| ubuntu/linux-raspi-5.4 | <5.4.0-1082.93~18.04.1 | 5.4.0-1082.93~18.04.1 |
| ubuntu/linux-raspi-5.4 | <5.15~ | 5.15~ |
| ubuntu/linux-riscv | <5.15~ | 5.15~ |
| ubuntu/linux-riscv-5.11 | <5.15~ | 5.15~ |
| ubuntu/linux-riscv-5.8 | <5.15~ | 5.15~ |
| ubuntu/linux-snapdragon | <5.15~ | 5.15~ |
| ubuntu/linux-snapdragon | <4.15.0-1148.158 | 4.15.0-1148.158 |
| ubuntu/linux-xilinx-zynqmp | <5.4.0-1023.27 | 5.4.0-1023.27 |
| debian/linux | <=4.19.249-2<=4.19.304-1<=5.10.209-2<=5.10.205-2 | 6.1.76-1 6.1.85-1 6.6.15-2 6.7.12-1 |
Remedy
Mitigation for this issue is either not available or the currently available options does not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2021-3669 https://nvd.nist.gov/vuln/detail/CVE-2021-3669
- https://bugzilla.redhat.com/show_bug.cgi?id=1986473
- https://access.redhat.com/errata/RHSA-2022:1975
- https://access.redhat.com/errata/RHSA-2022:1988
- https://access.redhat.com/security/cve/cve-2021-3669
- https://access.redhat.com/security/cve/CVE-2021-3669
- https://bugzilla.redhat.com/show_bug.cgi?id=1980619
- https://security-tracker.debian.org/tracker/CVE-2021-3669
- https://launchpad.net/bugs/cve/CVE-2021-3669
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1988923
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1980619
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1986473#c9
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1986473#c10
- https://lore.kernel.org/all/20210809203554.1562989-1-aquini@redhat.com/
- https://ubuntu.com/security/notices/USN-5924-1
- https://ubuntu.com/security/notices/USN-5927-1
- https://ubuntu.com/security/notices/USN-5975-1
- https://ubuntu.com/security/notices/USN-5980-1
- https://ubuntu.com/security/notices/USN-5981-1
- https://ubuntu.com/security/notices/USN-5984-1
- https://ubuntu.com/security/notices/USN-5985-1
- https://ubuntu.com/security/notices/USN-5991-1
- https://ubuntu.com/security/notices/USN-6001-1
- https://ubuntu.com/security/notices/USN-6009-1
- https://ubuntu.com/security/notices/USN-6013-1
- https://ubuntu.com/security/notices/USN-6014-1
- https://ubuntu.com/security/notices/USN-6020-1
- https://ubuntu.com/security/notices/USN-6030-1
- https://ubuntu.com/security/notices/USN-6151-1
- https://www.cve.org/CVERecord?id=CVE-2021-3669
- https://nvd.nist.gov/vuln/detail/CVE-2021-3669
- https://git.kernel.org/linus/7ca7e564e049d8b350ec9d958ff25eaa24226352
- https://git.kernel.org/linus/20401d1058f3f841f35a594ac2fc1293710e55b9
- https://ubuntu.com/security/CVE-2021-3669
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-3669
- agent/weakness
- agent/last-modified-date
- agent/author
- agent/references
- agent/remedy
- agent/severity
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/event
- agent/tags
- agent/description
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- vendor/ibm
- canonical/ibm spectrum copy data management
- version/ibm spectrum copy data management/2.2.0.0
- version/ibm spectrum copy data management/2.2.15.0
- canonical/ibm spectrum protect plus
- version/ibm spectrum protect plus/10.1.0
- version/ibm spectrum protect plus/10.1.10.2
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- version/debian debian linux/11.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/34
- vendor/redhat
- canonical/redhat build of quarkus
- version/redhat build of quarkus/2.0
- canonical/redhat developer tools
- version/redhat developer tools/1.0
- canonical/redhat enterprise linux
- version/redhat enterprise linux/6.0
- version/redhat enterprise linux/7.0
- version/redhat enterprise linux/8.0
- canonical/redhat enterprise linux aus
- version/redhat enterprise linux aus/8.6
- canonical/redhat enterprise linux for ibm z systems
- version/redhat enterprise linux for ibm z systems/8.0
- canonical/redhat enterprise linux for ibm z systems eus
- version/redhat enterprise linux for ibm z systems eus/8.6
- canonical/redhat enterprise linux for power little endian
- version/redhat enterprise linux for power little endian/8.0
- canonical/redhat enterprise linux for power little endian eus
- version/redhat enterprise linux for power little endian eus/8.6
- canonical/redhat enterprise linux for real time
- version/redhat enterprise linux for real time/8
- canonical/redhat enterprise linux for real time for nfv
- version/redhat enterprise linux for real time for nfv/8
- canonical/redhat enterprise linux for real time for nfv tus
- version/redhat enterprise linux for real time for nfv tus/8.6
- canonical/redhat enterprise linux for real time tus
- version/redhat enterprise linux for real time tus/8.6
- canonical/redhat enterprise linux server aus
- version/redhat enterprise linux server aus/8.6
- canonical/redhat enterprise linux server for power little endian update services for sap solutions
- version/redhat enterprise linux server for power little endian update services for sap solutions/8.6
- canonical/redhat enterprise linux server tus
- version/redhat enterprise linux server tus/8.6
- canonical/redhat codeready linux builder
- canonical/redhat enterprise linux eus
- version/redhat enterprise linux eus/8.6
- canonical/redhat openshift container platform
- version/redhat openshift container platform/4.6
- version/redhat openshift container platform/4.7
- version/redhat openshift container platform/4.9
- canonical/redhat virtualization host
- version/redhat virtualization host/4.0
- package-manager/debian
- package-manager/ubuntu