CVE-2021-20265
Fixed in a distro release EPSS <1%
A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.
Products: linux_kernel, oracle tekelec_platform_distribution
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | hyperv-daemons-6.18 | 0 |
| Chainguard | linux-aws-6.12 | 0 |
| Chainguard | linux-aws-6.12 | 6.12.65-r0 |
| Chainguard | linux-aws-6.12-boot-installed | 0 |
| Chainguard | linux-aws-6.12-fips-boot-installed | 0 |
| Chainguard | linux-aws-6.12-headers | 0 |
| Chainguard | linux-aws-6.12-modules | 0 |
| Chainguard | linux-aws-6.18 | 0 |
| Chainguard | linux-aws-6.18 | 6.18.10-r0 |
| Chainguard | linux-aws-6.18-boot-installed | 0 |
| Chainguard | linux-aws-6.18-fips-boot-installed | 0 |
| Chainguard | linux-aws-6.18-headers | 0 |
| Chainguard | linux-aws-6.18-modules | 0 |
| Chainguard | linux-aws-generic-boot-installed | 0 |
| Chainguard | linux-aws-generic-modules | 0 |
| Chainguard | linux-azure-6.12 | 6.12.65-r1 |
| Chainguard | linux-azure-6.12 | 0 |
| Chainguard | linux-azure-6.18 | 0 |
| Chainguard | linux-azure-6.18-boot-installed | 0 |
| Chainguard | linux-azure-6.18-fips-boot-installed | 0 |
| Chainguard | linux-azure-6.18-headers | 0 |
| Chainguard | linux-azure-6.18-modules | 0 |
| Chainguard | linux-azure-generic-modules | 0 |
| Chainguard | linux-desktop-6.18 | no fix |
| Chainguard | linux-desktop-6.18-bootc | no fix |
| Chainguard | linux-desktop-6.18-bootc-boot-installed | no fix |
| Chainguard | linux-desktop-6.18-headers | no fix |
| Chainguard | linux-desktop-6.18-modules | no fix |
| Chainguard | linux-desktop-7.2 | no fix |
| Chainguard | linux-desktop-7.2-bootc | no fix |
| Chainguard | linux-desktop-7.2-bootc-boot-installed | no fix |
| Chainguard | linux-desktop-7.2-headers | no fix |
| Chainguard | linux-desktop-7.2-modules | no fix |
| Chainguard | linux-firecracker-6.18 | no fix |
| Chainguard | linux-gcp-6.12 | 6.12.65-r0 |
| Chainguard | linux-gcp-6.12 | 0 |
| Chainguard | linux-gcp-6.18 | 6.18.10-r0 |
| Chainguard | linux-gcp-6.18 | 0 |
| Chainguard | linux-gcp-6.18-boot-installed | 0 |
| Chainguard | linux-gcp-6.18-fips-boot-installed | 0 |
| Chainguard | linux-gcp-6.18-headers | 0 |
| Chainguard | linux-gcp-6.18-modules | 0 |
| Chainguard | linux-gcp-generic-modules | 0 |
| Chainguard | linux-microvm-6.18 | no fix |
| Chainguard | linux-microvm-6.18-image-compressed | no fix |
| Chainguard | linux-microvm-6.18-image-uncompressed | no fix |
| Chainguard | linux-microvm-6.18-loadpin-test | no fix |
| Chainguard | linux-microvm-6.18-modules | no fix |
| Chainguard | linux-microvm-7.3 | no fix |
| Chainguard | linux-microvm-7.3-image-compressed | no fix |
| Chainguard | linux-microvm-7.3-image-uncompressed | no fix |
| Chainguard | linux-microvm-7.3-modules | no fix |
| Chainguard | linux-qemu-6.12 | 6.12.71-r0 |
| Chainguard | linux-qemu-6.18 | 6.18.10-r0 |
| Chainguard | linux-qemu-generic | 6.18.5-r0 |
| Chainguard | linux-qemu-generic | 0 |
| Chainguard | linux-qemu-melange | 6.18.16-r0 |
| Chainguard | linux-qemu-rc | 6.19_rc2-r0 |
| Chainguard | linux-qemu-rc | 6.19_rc1-r0 |
| Chainguard | linux-qemu-rc | 6.18_rc5-r0 |
| Chainguard | linux-qemu-rc | 6.18_rc6-r0 |
| Chainguard | linux-qemu-rc | 6.19_rc1-r1 |
| Chainguard | linux-qemu-rc | 6.18_rc5-r1 |
| Chainguard | linux-qemu-rc | 6.19_rc4-r0 |
| Chainguard | linux-qemu-rc | 6.19_rc5-r0 |
| Chainguard | linux-qemu-rc | 6.19_rc3-r0 |
| Chainguard | linux-qemu-rc | 6.18_rc7-r2 |
| Chainguard | linux-qemu-rc | 6.18_rc7-r3 |
| Chainguard | linux-qemu-rc | 6.19_rc1-r2 |
| Chainguard | linux-qemu-rc | 0 |
| Chainguard | linux-qemu-rc-boot-installed | 0 |
| Chainguard | linux-qemu-rc-fips-boot-installed | 0 |
| Chainguard | linux-qemu-rc-headers | 0 |
| Chainguard | linux-qemu-rc-modules | 0 |
| Chainguard | linux-raspberry-pi | no fix |
| Chainguard | linux-raspberry-pi-4 | no fix |
| Chainguard | linux-raspberry-pi-4-boot-configuration | no fix |
| Chainguard | linux-raspberry-pi-4-bootc | no fix |
| Chainguard | linux-raspberry-pi-boot-configuration | no fix |
| Chainguard | linux-raspberry-pi-bootc | no fix |
| Chainguard | linux-server-7.2 | no fix |
| Chainguard | linux-server-7.2-bootc | no fix |
| Chainguard | linux-server-7.2-bootc-boot-installed | no fix |
| Chainguard | linux-server-7.2-headers | no fix |
| Chainguard | linux-server-7.2-modules | no fix |
| Chainguard | linux-vmware-6.12 | 6.12.71-r0 |
| Chainguard | linux-vmware-6.18 | 6.18.10-r0 |
| Debian 12 | linux | 4.4.4-1 |
| Debian 13 | linux | 4.4.4-1 |
| Debian 14 | linux | 4.4.4-1 |
| Red Hat Enterprise Linux 7 | bpftool | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | bpftool-debuginfo | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-abi-whitelists | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-bootwrapper | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debug | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debug-debuginfo | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debug-devel | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debuginfo | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debuginfo-common-ppc64 | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debuginfo-common-ppc64le | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debuginfo-common-s390x | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-debuginfo-common-x86_64 | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-devel | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-doc | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-kdump | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-kdump-debuginfo | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-kdump-devel | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-tools | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-tools-debuginfo | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-tools-libs | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | kernel-tools-libs-devel | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | perf | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | perf-debuginfo | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | python-perf | 0:3.10.0-1160.21.1.el7 |
| Red Hat Enterprise Linux 7 | python-perf-debuginfo | 0:3.10.0-1160.21.1.el7 |
| Red Hat rhel els 6 | kernel | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-abi-whitelists | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-debug | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-debug-debuginfo | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-debug-devel | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-debuginfo | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-debuginfo-common-i686 | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-debuginfo-common-s390x | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-debuginfo-common-x86_64 | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-devel | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-doc | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-firmware | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-kdump | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-kdump-debuginfo | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | kernel-kdump-devel | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | perf | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | perf-debuginfo | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | python-perf | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel els 6 | python-perf-debuginfo | 0:2.6.32-754.39.1.el6 |
| Red Hat rhel extras rt 7 | kernel-rt | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-debug | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-debug-debuginfo | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-debug-devel | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-debug-kvm | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-debug-kvm-debuginfo | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-debuginfo | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-debuginfo-common-x86_64 | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-devel | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-doc | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-kvm | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-kvm-debuginfo | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-trace | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-trace-debuginfo | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-trace-devel | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-trace-kvm | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| Red Hat rhel extras rt 7 | kernel-rt-trace-kvm-debuginfo | 0:3.10.0-1160.21.1.rt56.1158.el7 |
| SUSE HPE Helion OpenStack 8 | kernel-default | 4.4.180-94.150.1 |
| SUSE HPE Helion OpenStack 8 | kernel-source | 4.4.180-94.150.1 |
| SUSE HPE Helion OpenStack 8 | kernel-syms | 4.4.180-94.150.1 |
| SUSE HPE Helion OpenStack 8 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 |
| SUSE Linux Enterprise High Availability Extension 12 SP3 | kernel-default | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-bigmem | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-default | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-ec2 | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-pae | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-ppc64 | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-source | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-syms | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-trace | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-xen | 3.0.101-108.132.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | kernel-default | 4.4.121-92.161.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | kernel-source | 4.4.121-92.161.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | kernel-syms | 4.4.121-92.161.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | kernel-default | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | kernel-source | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | kernel-syms | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server 12 SP3-LTSS | kernel-default | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server 12 SP3-LTSS | kernel-source | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server 12 SP3-LTSS | kernel-syms | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server 12 SP3-LTSS | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-default | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-syms | 4.4.180-94.150.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 |
| SUSE OpenStack Cloud 8 | kernel-default | 4.4.180-94.150.1 |
| SUSE OpenStack Cloud 8 | kernel-source | 4.4.180-94.150.1 |
| SUSE OpenStack Cloud 8 | kernel-syms | 4.4.180-94.150.1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-default | 4.4.180-94.150.1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-source | 4.4.180-94.150.1 |
| SUSE OpenStack Cloud Crowbar 8 | kernel-syms | 4.4.180-94.150.1 |
| SUSE OpenStack Cloud Crowbar 8 | kgraft-patch-SLE12-SP3_Update_41 | 1-4.3.1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1010.13 |
| Ubuntu 18.04 LTS | linux-aws-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure | no fix |
| Ubuntu 18.04 LTS | linux-azure-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-azure-edge | no fix |
| Ubuntu 18.04 LTS | linux-gcp | no fix |
| Ubuntu 18.04 LTS | linux-gcp-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-gcp-edge | no fix |
| Ubuntu 18.04 LTS | linux-gke-4.15 | no fix |
| Ubuntu 18.04 LTS | linux-hwe | no fix |
| Ubuntu 18.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-oem | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.3 | no fix |
| Ubuntu 20.04 LTS | linux-raspi2 | no fix |
| Ubuntu 20.04 LTS | linux-riscv | no fix |
| Ubuntu Pro 14.04 LTS | linux | no fix |
| Ubuntu Pro 14.04 LTS | linux-aws | no fix |
| Ubuntu Pro 14.04 LTS | linux-azure | no fix |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | no fix |