CVE-2021-26930
Description
An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV backend, the driver maps grant references provided by the frontend. In this process, errors may be encountered. In one case, an error encountered earlier might be discarded by later processing, resulting in the caller assuming successful mapping, and hence subsequent operations trying to access space that wasnt mapped. In another case, internal state would be insufficiently updated, preventing safe recovery from the error. This affects drivers/block/xen-blkback/blkback.c.
Risk Information
Base Score
7.8
MODERATE
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.107
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 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