CVE-2021-26931
Description
An issue was discovered in the Linux kernel 2.6.39 through 5.10.16, as used in Xen. Block, net, and SCSI backends consider certain errors a plain bug, deliberately causing a kernel crash. For errors potentially being at least under the influence of guests (such as out of memory conditions), it isnt correct to assume a plain bug. Memory allocations potentially causing such crashes occur only when Linux is running in PV mode, though. This affects drivers/block/xen-blkback/blkback.c and drivers/xen/xen-scsiback.c.
Risk Information
Base Score
5.5
MODERATE
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.069
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Kernel-uek update (ELSA-2021-9051) kernel-uek-4.1.12-124.48.3.1.el6uek.x86_64.rpm | Linux |
| Kernel-uek-debug update (ELSA-2021-9051) kernel-uek-debug-4.1.12-124.48.3.1.el6uek.x86_64.rpm | Linux |
| Kernel-uek-debug-devel update (ELSA-2021-9051) kernel-uek-debug-devel-4.1.12-124.48.3.1.el6uek.x86_64.rpm | Linux |
| Kernel-uek-devel update (ELSA-2021-9051) kernel-uek-devel-4.1.12-124.48.3.1.el6uek.x86_64.rpm | Linux |
| Kernel-uek-doc update (ELSA-2021-9051) kernel-uek-doc-4.1.12-124.48.3.1.el6uek.noarch.rpm | Linux |
| Kernel-uek-firmware update (ELSA-2021-9051) kernel-uek-firmware-4.1.12-124.48.3.1.el6uek.noarch.rpm | Linux |
| Kernel-uek update (ELSA-2021-9051) kernel-uek-4.1.12-124.48.3.1.el7uek.x86_64.rpm | Linux |
| Kernel-uek-debug update (ELSA-2021-9051) kernel-uek-debug-4.1.12-124.48.3.1.el7uek.x86_64.rpm | Linux |
| Kernel-uek-debug-devel update (ELSA-2021-9051) kernel-uek-debug-devel-4.1.12-124.48.3.1.el7uek.x86_64.rpm | Linux |
| Kernel-uek-devel update (ELSA-2021-9051) kernel-uek-devel-4.1.12-124.48.3.1.el7uek.x86_64.rpm | Linux |
| Kernel-uek-doc update (ELSA-2021-9051) kernel-uek-doc-4.1.12-124.48.3.1.el7uek.noarch.rpm | Linux |
| Kernel-uek-firmware update (ELSA-2021-9051) kernel-uek-firmware-4.1.12-124.48.3.1.el7uek.noarch.rpm | Linux |
| Kernel-uek update (ELSA-2021-9085) kernel-uek-5.4.17-2036.104.4.el8uek.x86_64.rpm | Linux |
| Kernel-uek-debug update (ELSA-2021-9085) kernel-uek-debug-5.4.17-2036.104.4.el8uek.x86_64.rpm | Linux |
| Kernel-uek-debug-devel update (ELSA-2021-9085) kernel-uek-debug-devel-5.4.17-2036.104.4.el8uek.x86_64.rpm | Linux |
| Kernel-uek-devel update (ELSA-2021-9085) kernel-uek-devel-5.4.17-2036.104.4.el8uek.x86_64.rpm | Linux |
| Kernel-uek-doc update (ELSA-2021-9085) kernel-uek-doc-5.4.17-2036.104.4.el8uek.noarch.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-4.12.14-16.50.1.x86_64.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-base-4.12.14-16.50.1.x86_64.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-base-debuginfo-4.12.14-16.50.1.x86_64.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-debuginfo-4.12.14-16.50.1.x86_64.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-debugsource-4.12.14-16.50.1.x86_64.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-devel-4.12.14-16.50.1.x86_64.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-devel-azure-4.12.14-16.50.1.noarch.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-source-azure-4.12.14-16.50.1.noarch.rpm | Linux |
| SUSE-SU-2021:1175-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-syms-azure-4.12.14-16.50.1.x86_64.rpm | Linux |
| Kernel-uek update (ELSA-2021-9140) kernel-uek-5.4.17-2102.200.13.el8uek.x86_64.rpm | Linux |
| Kernel-uek-debug update (ELSA-2021-9140) kernel-uek-debug-5.4.17-2102.200.13.el8uek.x86_64.rpm | Linux |
| Kernel-uek-debug-devel update (ELSA-2021-9140) kernel-uek-debug-devel-5.4.17-2102.200.13.el8uek.x86_64.rpm | Linux |
| Kernel-uek-devel update (ELSA-2021-9140) kernel-uek-devel-5.4.17-2102.200.13.el8uek.x86_64.rpm | Linux |
| Kernel-uek-doc update (ELSA-2021-9140) kernel-uek-doc-5.4.17-2102.200.13.el8uek.noarch.rpm | Linux |
| Kernel-uek-container update (ELSA-2021-9141) kernel-uek-container-5.4.17-2102.200.13.el8.x86_64.rpm | Linux |
| Kernel-uek-container-debug update (ELSA-2021-9141) kernel-uek-container-debug-5.4.17-2102.200.13.el8.x86_64.rpm | Linux |
| Linux kernel (USN-4904-1) linux-image-aws_4.4.0.1126.131_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-kvm_4.4.0.1091.89_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-generic_4.4.0.208.214_i386.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-generic_4.4.0.208.214_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-virtual_4.4.0.208.214_i386.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-virtual_4.4.0.208.214_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-lowlatency_4.4.0.208.214_i386.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-lowlatency_4.4.0.208.214_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-4.4.0-1091-kvm_4.4.0-1091.100_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-4.4.0-1126-aws_4.4.0-1126.140_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-4.4.0-208-generic_4.4.0-208.240_i386.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-4.4.0-208-generic_4.4.0-208.240_amd64.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-4.4.0-208-lowlatency_4.4.0-208.240_i386.deb | Linux |
| Linux kernel (USN-4904-1) linux-image-4.4.0-208-lowlatency_4.4.0-208.240_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-aws_5.4.0.1043.26_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-aws_5.4.0.1043.44_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-gcp_5.4.0.1041.28_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-gcp_5.4.0.1041.50_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-kvm_5.4.0.1037.35_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-oem_5.4.0.71.74_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-oem_5.4.0.71.79~18.04.64_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-azure_5.4.0.1044.24_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-azure_5.4.0.1044.42_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-gkeop_5.4.0.1013.16_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-oracle_5.4.0.1042.39_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-oracle_5.4.0.1042.45~18.04.24_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-generic_5.4.0.71.74_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-gke-5.4_5.4.0.1040.42~18.04.7_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-virtual_5.4.0.71.74_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-oem-osp1_5.4.0.71.74_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-oem-osp1_5.4.0.71.79~18.04.64_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-gkeop-5.4_5.4.0.1013.16_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-gkeop-5.4_5.4.0.1013.14~18.04.14_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-lowlatency_5.4.0.71.74_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1037-kvm_5.4.0-1037.38_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1040-gke_5.4.0-1040.42~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1041-gcp_5.4.0-1041.44_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1041-gcp_5.4.0-1041.44~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1043-aws_5.4.0-1043.45_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1043-aws_5.4.0-1043.45~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1013-gkeop_5.4.0-1013.14_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1013-gkeop_5.4.0-1013.14~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1044-azure_5.4.0-1044.46_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1044-azure_5.4.0-1044.46~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-71-generic_5.4.0-71.79_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-71-generic_5.4.0-71.79~18.04.1_i386.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-71-generic_5.4.0-71.79~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1042-oracle_5.4.0-1042.45_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-1042-oracle_5.4.0-1042.45~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-generic-hwe-18.04_5.4.0.71.79~18.04.64_i386.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-generic-hwe-18.04_5.4.0.71.79~18.04.64_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-virtual-hwe-18.04_5.4.0.71.79~18.04.64_i386.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-virtual-hwe-18.04_5.4.0.71.79~18.04.64_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-71-lowlatency_5.4.0-71.79_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-71-lowlatency_5.4.0-71.79~18.04.1_i386.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-5.4.0-71-lowlatency_5.4.0-71.79~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-lowlatency-hwe-18.04_5.4.0.71.79~18.04.64_i386.deb | Linux |
| Linux kernel (USN-4909-1) linux-image-lowlatency-hwe-18.04_5.4.0.71.79~18.04.64_amd64.deb | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-4.12.14-122.66.2.x86_64.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-base-4.12.14-122.66.2.x86_64.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-base-debuginfo-4.12.14-122.66.2.x86_64.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-debuginfo-4.12.14-122.66.2.x86_64.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-debugsource-4.12.14-122.66.2.x86_64.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-devel-4.12.14-122.66.2.x86_64.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-devel-debuginfo-4.12.14-122.66.2.x86_64.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-devel-4.12.14-122.66.2.noarch.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-macros-4.12.14-122.66.2.noarch.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-source-4.12.14-122.66.2.noarch.rpm | Linux |
| SUSE-SU-2021:1210-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-syms-4.12.14-122.66.2.x86_64.rpm | Linux |
| Linux kernel (USN-4946-1) linux-image-kvm_4.15.0.1091.87_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-generic_4.15.0.143.130_i386.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-generic_4.15.0.143.130_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-virtual_4.15.0.143.130_i386.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-virtual_4.15.0.143.130_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-dell300x_4.15.0.1018.20_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-lowlatency_4.15.0.143.130_i386.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-lowlatency_4.15.0.143.130_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-aws-lts-18.04_4.15.0.1102.105_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-gcp-lts-18.04_4.15.0.1099.117_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-1091-kvm_4.15.0-1091.93_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-1099-gcp_4.15.0-1099.112_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-1102-aws_4.15.0-1102.109_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-azure-lts-18.04_4.15.0.1114.87_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-oracle-lts-18.04_4.15.0.1071.81_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-1114-azure_4.15.0-1114.127_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-1071-oracle_4.15.0-1071.79_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-143-generic_4.15.0-143.147_i386.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-143-generic_4.15.0-143.147_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-1018-dell300x_4.15.0-1018.22_amd64.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-143-lowlatency_4.15.0-143.147_i386.deb | Linux |
| Linux kernel (USN-4946-1) linux-image-4.15.0-143-lowlatency_4.15.0-143.147_amd64.deb | Linux |
| Kernel-uek-container update (ELSA-2022-9999) kernel-uek-container-5.4.17-2136.313.6.el8.x86_64.rpm | Linux |
| Kernel-uek-container-debug update (ELSA-2022-9999) kernel-uek-container-debug-5.4.17-2136.313.6.el8.x86_64.rpm | Linux |
| kernel Security Update (ALAS-2021-1616) kernel-livepatch-4.14.225-168.357-1.0-0.amzn2.x86_64.rpm | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234