CVE-2020-27675
Description
An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5.
Risk Information
Base Score
4.7
MODERATE
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.062
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-4.12.14-16.34.1.x86_64.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-base-4.12.14-16.34.1.x86_64.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-base-debuginfo-4.12.14-16.34.1.x86_64.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-debuginfo-4.12.14-16.34.1.x86_64.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-debugsource-4.12.14-16.34.1.x86_64.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-azure-devel-4.12.14-16.34.1.x86_64.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-devel-azure-4.12.14-16.34.1.noarch.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-source-azure-4.12.14-16.34.1.noarch.rpm | Linux |
| SUSE-SU-2020:3281-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-syms-azure-4.12.14-16.34.1.x86_64.rpm | Linux |
| Linux kernel (USN-4679-1) linux-image-aws_5.4.0.1034.19_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-aws_5.4.0.1034.35_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-gcp_5.4.0.1033.21_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-gcp_5.4.0.1033.42_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-kvm_5.4.0.1031.29_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-oem_5.4.0.59.62_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-oem_5.4.0.59.65~18.04.54_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-azure_5.4.0.1035.17_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-azure_5.4.0.1035.33_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-oracle_5.4.0.1034.31_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-oracle_5.4.0.1034.36~18.04.18_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-generic_5.4.0.59.62_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-gke-5.4_5.4.0.1033.35~18.04.2_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-virtual_5.4.0.59.62_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-oem-osp1_5.4.0.59.62_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-oem-osp1_5.4.0.59.65~18.04.54_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-lowlatency_5.4.0.59.62_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1031-kvm_5.4.0-1031.32_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1033-gcp_5.4.0-1033.35_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1033-gcp_5.4.0-1033.35~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1033-gke_5.4.0-1033.35~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1034-aws_5.4.0-1034.35_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1034-aws_5.4.0-1034.35~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1035-azure_5.4.0-1035.36_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1035-azure_5.4.0-1035.36~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-59-generic_5.4.0-59.65_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-59-generic_5.4.0-59.65~18.04.1_i386.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-59-generic_5.4.0-59.65~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1034-oracle_5.4.0-1034.36_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-1034-oracle_5.4.0-1034.36~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-generic-hwe-18.04_5.4.0.59.65~18.04.54_i386.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-generic-hwe-18.04_5.4.0.59.65~18.04.54_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-virtual-hwe-18.04_5.4.0.59.65~18.04.54_i386.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-virtual-hwe-18.04_5.4.0.59.65~18.04.54_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-59-lowlatency_5.4.0-59.65_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-59-lowlatency_5.4.0-59.65~18.04.1_i386.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-5.4.0-59-lowlatency_5.4.0-59.65~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-lowlatency-hwe-18.04_5.4.0.59.65~18.04.54_i386.deb | Linux |
| Linux kernel (USN-4679-1) linux-image-lowlatency-hwe-18.04_5.4.0.59.65~18.04.54_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-gcp_4.15.0.1091.92_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-gke_4.15.0.1077.81_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-gke_4.15.0.1091.92_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-kvm_4.15.0.1082.78_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-oem_4.15.0.129.128_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-azure_4.15.0.1103.96_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-oracle_4.15.0.1062.51_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-aws-hwe_4.15.0.1091.85_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-generic_4.15.0.129.116_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-generic_4.15.0.129.116_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-virtual_4.15.0.129.116_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-virtual_4.15.0.129.116_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-gke-4.15_4.15.0.1077.81_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-lowlatency_4.15.0.129.116_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-lowlatency_4.15.0.129.116_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-aws-lts-18.04_4.15.0.1091.93_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-gcp-lts-18.04_4.15.0.1091.109_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1077-gke_4.15.0-1077.82_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1082-kvm_4.15.0-1082.84_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1091-aws_4.15.0-1091.96_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1091-aws_4.15.0-1091.96~16.04.1_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1091-gcp_4.15.0-1091.104_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1091-gcp_4.15.0-1091.104~16.04.1_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-azure-lts-18.04_4.15.0.1103.76_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-oracle-lts-18.04_4.15.0.1062.72_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1103-azure_4.15.0-1103.114_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1103-azure_4.15.0-1103.114~16.04.1_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-generic-hwe-16.04_4.15.0.129.128_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-generic-hwe-16.04_4.15.0.129.128_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-virtual-hwe-16.04_4.15.0.129.128_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-virtual-hwe-16.04_4.15.0.129.128_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1062-oracle_4.15.0-1062.68_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-1062-oracle_4.15.0-1062.68~16.04.1_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-generic_4.15.0-129.132_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-generic_4.15.0-129.132_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-generic_4.15.0-129.132~16.04.1_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-generic_4.15.0-129.132~16.04.1_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-lowlatency-hwe-16.04_4.15.0.129.128_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-lowlatency-hwe-16.04_4.15.0.129.128_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-lowlatency_4.15.0-129.132_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-lowlatency_4.15.0-129.132_amd64.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-lowlatency_4.15.0-129.132~16.04.1_i386.deb | Linux |
| Linux kernel (USN-4680-1) linux-image-4.15.0-129-lowlatency_4.15.0-129.132~16.04.1_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-aws_4.4.0.1119.124_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-kvm_4.4.0.1085.83_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-generic_4.4.0.198.204_i386.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-generic_4.4.0.198.204_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-virtual_4.4.0.198.204_i386.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-virtual_4.4.0.198.204_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-lowlatency_4.4.0.198.204_i386.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-lowlatency_4.4.0.198.204_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-4.4.0-1085-kvm_4.4.0-1085.94_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-4.4.0-1119-aws_4.4.0-1119.133_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-4.4.0-198-generic_4.4.0-198.230_i386.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-4.4.0-198-generic_4.4.0-198.230_amd64.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-4.4.0-198-lowlatency_4.4.0-198.230_i386.deb | Linux |
| Linux kernel (USN-4681-1) linux-image-4.4.0-198-lowlatency_4.4.0-198.230_amd64.deb | Linux |
| Linux kernel (USN-4751-1) linux-image-5.8.0-44-generic_5.8.0-44.50~20.04.1_amd64.deb | Linux |
| Linux kernel (USN-4751-1) linux-image-5.8.0-44-lowlatency_5.8.0-44.50~20.04.1_amd64.deb | Linux |
| kernel Security Update (ALAS-2020-1566) kernel-livepatch-4.14.209-160.335-1.0-0.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