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OpenAdvisories
Unscored CVE-2021-3772 EUVD-2021-27041GHSA-g6gr-2x73-gj6f

A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the a…

Published Mar 2, 2022 · Updated Aug 3, 2024 · Assigned by redhat

Package: linux Package: linux Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.3 Package: linux-aws-5.4 Package: linux-aws-5.8 Package: linux-aws-fips Package: linux-aws-hwe Package: linux-azure Package: linux-azure-4.15 Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.3 Package: linux-azure-5.4 Package: linux-azure-5.8 Package: linux-azure-edge Package: linux-azure-fde-5.15 Package: linux-azure-fips Package: linux-bluefield Package: linux-dell300x Package: linux-fips Package: linux-gcp Package: linux-gcp-4.15 Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.3 Package: linux-gcp-5.4 Package: linux-gcp-5.8 Package: linux-gcp-edge Package: linux-gcp-fips Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.4 Package: linux-hwe-5.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-5.4 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-iot Package: linux-kvm Package: linux-lts-xenial Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.6 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.4 Package: linux-oracle-5.8 Package: linux-raspi Package: linux-raspi-5.4 Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.8 Package: linux-snapdragon Package: linux-vmware Ecosystem: Debian Ecosystem: Ubuntu

Description

A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.

Affected products

VendorProductAffectedFixed
— kernel Fixed in linux kernel v5.15 and above —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 5.14.16-1 —
Debian 13 linux 5.14.16-1 —
Debian 12 linux 5.14.16-1 —
Debian 10 linux 4.19.232-1 DSA-5096-1
Debian 9 linux-4.19 4.19.232-1~deb9u1 DLA-2941-1
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 22.04 LTS linux-realtime +1 No fix yet —
Ubuntu 20.04 LTS linux 5.4.0-117.132 USN-5467-1
Ubuntu 20.04 LTS linux-aws +1 5.4.0-1078.84 USN-5467-1
Ubuntu 20.04 LTS linux-aws-5.11 +1 5.11.0-1028.31~20.04.1 USN-5265-1
Ubuntu 20.04 LTS linux-aws-5.13 5.13.0-1012.13~20.04.1 USN-5265-1
Ubuntu 20.04 LTS linux-azure 5.4.0-1083.87 USN-5467-1
Ubuntu 20.04 LTS linux-azure-5.11 5.11.0-1028.31~20.04.2 USN-5265-1
Ubuntu 20.04 LTS linux-azure-5.13 5.13.0-1013.15~20.04.1 —
Ubuntu 20.04 LTS linux-azure-fde 5.4.0-1083.87+cvm1.1 USN-5467-1
Ubuntu 20.04 LTS linux-bluefield 5.4.0-1040.44 —
Ubuntu 20.04 LTS linux-gcp-5.11 5.11.0-1029.33~20.04.3 USN-5265-1
Ubuntu 20.04 LTS linux-gcp-5.13 5.13.0-1013.16~20.04.1 —
Ubuntu 20.04 LTS linux-gke 5.4.0-1074.79 USN-5467-1
Ubuntu 20.04 LTS linux-gkeop 5.4.0-1046.48 USN-5467-1
Ubuntu 20.04 LTS linux-hwe-5.13 5.13.0-28.31~20.04.1 USN-5265-1
Ubuntu 20.04 LTS linux-ibm 5.4.0-1026.29 USN-5467-1
Ubuntu 20.04 LTS linux-iot 5.4.0-1004.6 —
Ubuntu 20.04 LTS linux-kvm 5.4.0-1068.72 USN-5467-1
Ubuntu 20.04 LTS linux-oem-5.13 5.13.0-1029.36 USN-5265-1
Ubuntu 20.04 LTS linux-oem-5.14 5.14.0-1008.8 USN-5165-1
Ubuntu 20.04 LTS linux-oracle 5.4.0-1076.83 USN-5467-1
Ubuntu 20.04 LTS linux-oracle-5.13 5.13.0-1016.20~20.04.1 —
Ubuntu 20.04 LTS linux-raspi 5.4.0-1065.75 USN-5467-1
Ubuntu 20.04 LTS linux-riscv +12 No fix yet —
Ubuntu 18.04 LTS linux 4.15.0-184.194 USN-5466-1
Ubuntu 18.04 LTS linux-aws 4.15.0-1133.143 USN-5466-1
Ubuntu 18.04 LTS linux-aws-5.4 +1 5.4.0-1078.84~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-azure-4.15 4.15.0-1142.156 USN-5466-1
Ubuntu 18.04 LTS linux-azure-5.4 5.4.0-1083.87~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-dell300x 4.15.0-1047.52 —
Ubuntu 18.04 LTS linux-gcp +13 No fix yet —
Ubuntu 18.04 LTS linux-gcp-4.15 4.15.0-1127.142 USN-5466-1
Ubuntu 18.04 LTS linux-gke-5.4 5.4.0-1074.79~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-gkeop-5.4 5.4.0-1046.48~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-hwe-5.4 5.4.0-117.132~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-ibm-5.4 5.4.0-1028.32~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-kvm 4.15.0-1119.123 USN-5466-1
Ubuntu 18.04 LTS linux-oracle 4.15.0-1098.108 USN-5466-1
Ubuntu 18.04 LTS linux-oracle-5.4 5.4.0-1076.83~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-raspi-5.4 5.4.0-1065.75~18.04.1 USN-5467-1
Ubuntu 18.04 LTS linux-raspi2 4.15.0-1114.122 USN-5466-1
Ubuntu 18.04 LTS linux-snapdragon 4.15.0-1132.142 USN-5466-1
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 9 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro FIPS 20.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 18.04 LTS linux-fips +3 No fix yet —
Ubuntu Pro FIPS 16.04 LTS linux-fips No fix yet —
Ubuntu Pro FIPS-updates 20.04 LTS linux-aws-fips +1 5.4.0-1078.84+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-azure-fips 5.4.0-1083.87+fips1 —
Ubuntu Pro FIPS-updates 20.04 LTS linux-fips 5.4.0-1054.61 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-aws-fips 4.15.0-2072.76 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-azure-fips 4.15.0-2053.58 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-fips 4.15.0-1090.100 —
Ubuntu Pro FIPS-updates 18.04 LTS linux-gcp-fips 4.15.0-2037.41 —
Ubuntu Pro FIPS-updates 16.04 LTS linux-fips 4.4.0-1088.95 —
Ubuntu Pro 20.04 LTS linux-azure-fde-5.15 5.15.0-1114.123~20.04.1 —
Ubuntu Pro 16.04 LTS linux 4.4.0-239.273 USN-6014-1
Ubuntu Pro 16.04 LTS linux-aws 4.4.0-1155.170 USN-6001-1
Ubuntu Pro 16.04 LTS linux-aws-hwe 4.15.0-1133.143~16.04.1 USN-5466-1
Ubuntu Pro 16.04 LTS linux-azure 4.15.0-1142.156~16.04.1 USN-5466-1
Ubuntu Pro 16.04 LTS linux-gcp 4.15.0-1127.142~16.04.1 USN-5466-1
Ubuntu Pro 16.04 LTS linux-hwe 4.15.0-184.194~16.04.1 USN-5466-1
Ubuntu Pro 16.04 LTS linux-kvm 4.4.0-1118.128 USN-6014-1
Ubuntu Pro 16.04 LTS linux-oracle 4.15.0-1098.108~16.04.1 USN-5466-1
Ubuntu Pro 14.04 LTS linux No fix yet —
Ubuntu Pro 14.04 LTS linux-aws 4.4.0-1117.123 USN-6013-1
Ubuntu Pro 14.04 LTS linux-azure 4.15.0-1142.156~14.04.1 USN-5466-1
Ubuntu Pro 14.04 LTS linux-lts-xenial 4.4.0-239.273~14.04.1 USN-6014-1
ReleasePackageFixed inAdvisory
RHEL 8 kernel-rt +12 4.18.0-372.9.1.rt7.166.el8 RHSA-2022:1975
RHEL 8 perf +26 4.18.0-372.9.1.el8 RHSA-2022:1988

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 8 perf +19 4.18.0-372.9.1.el8 ALSA-2022:1988

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 kernel 4.18.0-372.9.1.el8 RLSA-2022:1988
Rocky Linux 8 kernel-rt 4.18.0-372.9.1.rt7.166.el8 RLSA-2022:1975
ReleasePackageFixed inAdvisory
SLES 15 SP3 kernel-64kb +7 5.3.18-59.34.1 SUSE-SU-2021:3675-1
SLES 15 SP3 kernel-azure +1 5.3.18-38.28.2 SUSE-SU-2021:3641-1
SLES 15 SP3 kernel-default-base 5.3.18-59.34.1.18.21.1 SUSE-SU-2021:3675-1
SLES 15 SP3 kernel-syms-azure 5.3.18-38.28.1 SUSE-SU-2021:3641-1
SLES 15 SP2 kernel-azure +1 5.3.18-18.72.2 SUSE-SU-2021:3640-1
SLES 15 SP2 kernel-default-base 5.3.18-24.93.1.9.42.5 SUSE-SU-2021:3754-1
SLES 15 SP2 kernel-docs +5 5.3.18-24.93.1 SUSE-SU-2021:3754-1
SLES 15 SP2 kernel-syms-azure 5.3.18-18.72.1 SUSE-SU-2021:3640-1
SLES 15 SP1 kernel-docs +4 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLES 15 SP1 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
SLES 15 kernel-docs +1 4.12.14-150.78.2 SUSE-SU-2021:3969-1
SLES 15 kernel-syms +4 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SLES 12 SP5 kernel-azure +2 4.12.14-16.80.1 SUSE-SU-2021:3848-1
Show 27 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP4 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SLES 12 SP3 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SLES 12 SP3 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SLES 12 SP2 kernel-syms +2 4.4.121-92.161.1 SUSE-SU-2021:3929-1
SLES 11 SP4 kernel-ec2 +8 3.0.101-108.132.1 SUSE-SU-2021:14849-1
SLES for SAP 15 SP1 kernel-docs +3 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLES for SAP 15 SP1 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
SLES for SAP 15 kernel-docs +1 4.12.14-150.78.2 SUSE-SU-2021:3969-1
SLES for SAP 15 kernel-syms +3 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SLES for SAP 12 SP5 kernel-azure +2 4.12.14-16.80.1 SUSE-SU-2021:3848-1
SLES for SAP 12 SP4 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SLES for SAP 12 SP3 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SLES for SAP 12 SP3 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SLE Real Time 12 SP5 kernel-rt +3 4.12.14-10.65.1 SUSE-SU-2021:3723-1
SLE Micro 5.1 kernel-default 5.3.18-59.34.1 SUSE-SU-2021:3675-1
SLE Micro 5.1 kernel-default-base 5.3.18-59.34.1.18.21.1 SUSE-SU-2021:3675-1
SLE Micro 5.1 kernel-rt 5.3.18-60.1 SUSE-SU-2021:3642-1
SLE Micro 5.0 kernel-default 5.3.18-24.93.1 SUSE-SU-2021:3754-1
SLE Micro 5.0 kernel-default-base 5.3.18-24.93.1.9.42.5 SUSE-SU-2021:3754-1
SLE Micro 5.0 kernel-rt 5.3.18-57.1 SUSE-SU-2021:3658-1
SLE Live Patching 15 SP3 kernel-default 5.3.18-59.34.1 SUSE-SU-2021:3675-1
SLE Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_9 1-7.3.1 SUSE-SU-2021:3675-1
SLE Live Patching 15 SP2 kernel-default 5.3.18-24.93.1 SUSE-SU-2021:3754-1
SLE Live Patching 15 SP2 kernel-livepatch-SLE15-SP2_Update_21 1-5.3.5 SUSE-SU-2021:3754-1
SLE Live Patching 15 SP1 kernel-default 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLE Live Patching 15 SP1 kernel-livepatch-SLE15-SP1_Update_27 1-3.3.1 SUSE-SU-2021:3876-1
SLE Live Patching 15 kernel-default 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SLE Live Patching 15 kernel-livepatch-SLE15_Update_26 1-1.3.1 SUSE-SU-2021:3969-1
SLE Live Patching 12 SP4 kernel-default 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SLE Live Patching 12 SP4 kgraft-patch-SLE12-SP4_Update_23 1-6.3.1 SUSE-SU-2021:3972-1
SLE HPC 15 SP1 kernel-docs +3 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SLE HPC 15 SP1 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
SLE HPC 15 kernel-docs +1 4.12.14-150.78.2 SUSE-SU-2021:3969-1
SLE HPC 15 kernel-syms +3 4.12.14-150.78.1 SUSE-SU-2021:3969-1
SUSE Real Time Module 15 SP3 kernel-rt +3 5.3.18-60.1 SUSE-SU-2021:3642-1
SUSE Real Time Module 15 SP2 kernel-rt +3 5.3.18-57.1 SUSE-SU-2021:3658-1
SUSE OpenStack Cloud Crowbar 9 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SUSE OpenStack Cloud Crowbar 8 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SUSE OpenStack Cloud Crowbar 8 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SUSE OpenStack Cloud 9 kernel-syms +2 4.12.14-95.83.2 SUSE-SU-2021:3972-1
SUSE OpenStack Cloud 8 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SUSE OpenStack Cloud 8 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SUSE HPE Helion OpenStack 8 kernel-syms +2 4.4.180-94.150.1 SUSE-SU-2021:3935-1
SUSE HPE Helion OpenStack 8 kgraft-patch-SLE12-SP3_Update_41 1-4.3.1 SUSE-SU-2021:3935-1
SUSE Enterprise Storage 6 kernel-docs +3 4.12.14-197.102.2 SUSE-SU-2021:3876-1
SUSE Enterprise Storage 6 kernel-obs-build 4.12.14-197.102.1 SUSE-SU-2021:3876-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.3 dtb-aarch64 +7 5.3.18-59.34.1 openSUSE-SU-2021:3675-1
openSUSE Leap 15.3 kernel-azure +1 5.3.18-38.28.2 openSUSE-SU-2021:3641-1
openSUSE Leap 15.3 kernel-debug +4 4.12.14-197.102.2 openSUSE-SU-2021:3876-1, openSUSE-SU-2021:3675-1
openSUSE Leap 15.3 kernel-default-base 5.3.18-59.34.1.18.21.1 openSUSE-SU-2021:3675-1
openSUSE Leap 15.3 kernel-syms-azure 5.3.18-38.28.1 openSUSE-SU-2021:3641-1
openSUSE Leap 15.2 kernel-default-base 5.3.18-lp152.102.1.lp152.8.49.1 openSUSE-SU-2021:1477-1
openSUSE Leap 15.2 kernel-docs +8 5.3.18-lp152.102.1 openSUSE-SU-2021:1477-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 kernel-livepatch-4.14.256-197.484 1.0-0.amzn2 ALAS2-2025-2752, ALAS2-2021-1727
Amazon Linux 2 perf +8 4.14.256-197.484.amzn2 ALAS2-2025-2752, ALAS2-2021-1727

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 8 perf +19 4.18.0-372.9.1.el8 ELSA-2022-1988
Oracle Linux 7 kernel-uek +5 4.1.12-124.61.2.el7uek ELSA-2022-9260

Advisories 37

References