CVE-2021-34556
Description
In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack.
Risk Information
Base Score
5.5
MODERATE
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
Exploitation Probability
0.043
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Linux kernel (USN-5092-1) linux-image-aws_5.11.0.1019.20_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-aws_5.11.0.1019.20~20.04.18_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-gcp_5.11.0.1020.20_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-gke_5.11.0.1020.20_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-kvm_5.11.0.1017.18_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-oracle_5.11.0.1019.20_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-generic_5.11.0.37.39_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-virtual_5.11.0.37.39_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-oem-20.04_5.11.0.37.39_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-lowlatency_5.11.0.37.39_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-5.11.0-1017-kvm_5.11.0-1017.18_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-5.11.0-1019-aws_5.11.0-1019.20_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-5.11.0-1019-aws_5.11.0-1019.20~20.04.1_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-5.11.0-1020-gcp_5.11.0-1020.22_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-5.11.0-37-generic_5.11.0-37.41_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-5.11.0-1019-oracle_5.11.0-1019.20_amd64.deb | Linux |
| Linux kernel (USN-5092-1) linux-image-5.11.0-37-lowlatency_5.11.0-37.41_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-azure_5.11.0.1017.18_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-oracle_5.11.0.1019.20~20.04.12_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-azure-edge_5.11.0.1017.18~20.04.16_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-5.11.0-1017-azure_5.11.0-1017.18_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-5.11.0-1017-azure_5.11.0-1017.18~20.04.1_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-5.11.0-37-generic_5.11.0-37.41~20.04.2_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-generic-hwe-20.04_5.11.0.37.41~20.04.16_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-virtual-hwe-20.04_5.11.0.37.41~20.04.16_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-5.11.0-1019-oracle_5.11.0-1019.20~20.04.1_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-5.11.0-37-lowlatency_5.11.0-37.41~20.04.2_amd64.deb | Linux |
| Linux kernel for Microsoft Azure Cloud systems (USN-5092-2) linux-image-lowlatency-hwe-20.04_5.11.0.37.41~20.04.16_amd64.deb | Linux |
| Linux kernel for OEM systems (USN-5096-1) linux-image-oem-20.04c_5.13.0.1014.18_amd64.deb | Linux |
| Linux kernel for OEM systems (USN-5096-1) linux-image-5.13.0-1014-oem_5.13.0-1014.18_amd64.deb | Linux |
| Linux kernel for OEM systems (USN-5115-1) linux-image-oem-20.04_5.10.0.1050.52_amd64.deb | Linux |
| Linux kernel for OEM systems (USN-5115-1) linux-image-oem-20.04b_5.10.0.1050.52_amd64.deb | Linux |
| Linux kernel for OEM systems (USN-5115-1) linux-image-5.10.0-1050-oem_5.10.0-1050.52_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-aws_5.4.0.1059.42_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-gcp_5.4.0.1057.43_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-gke_5.4.0.1055.65_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-ibm_5.4.0.1007.8_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-kvm_5.4.0.1049.48_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-oem_5.4.0.90.94_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-oem_5.4.0.90.101~18.04.80_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-azure_5.4.0.1063.43_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-gkeop_5.4.0.1026.29_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-generic_5.4.0.90.94_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-gke-5.4_5.4.0.1055.65_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-virtual_5.4.0.90.94_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-oem-osp1_5.4.0.90.94_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-oem-osp1_5.4.0.90.101~18.04.80_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-gkeop-5.4_5.4.0.1026.29_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-gkeop-5.4_5.4.0.1026.27~18.04.27_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-lowlatency_5.4.0.90.94_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-aws-lts-20.04_5.4.0.1059.62_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-gcp-lts-20.04_5.4.0.1057.67_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-ibm-lts-20.04_5.4.0.1007.8_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1007-ibm_5.4.0-1007.8_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1049-kvm_5.4.0-1049.51_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1055-gke_5.4.0-1055.58_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1057-gcp_5.4.0-1057.61_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1057-gcp_5.4.0-1057.61~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1059-aws_5.4.0-1059.62_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1059-aws_5.4.0-1059.62~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-azure-lts-20.04_5.4.0.1063.61_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1026-gkeop_5.4.0-1026.27_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1026-gkeop_5.4.0-1026.27~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1063-azure_5.4.0-1063.66_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-1063-azure_5.4.0-1063.66~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-90-generic_5.4.0-90.101_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-90-generic_5.4.0-90.101~18.04.1_i386.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-90-generic_5.4.0-90.101~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-generic-hwe-18.04_5.4.0.90.101~18.04.80_i386.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-generic-hwe-18.04_5.4.0.90.101~18.04.80_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-virtual-hwe-18.04_5.4.0.90.101~18.04.80_i386.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-virtual-hwe-18.04_5.4.0.90.101~18.04.80_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-90-lowlatency_5.4.0-90.101_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-90-lowlatency_5.4.0-90.101~18.04.1_i386.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-5.4.0-90-lowlatency_5.4.0-90.101~18.04.1_amd64.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-lowlatency-hwe-18.04_5.4.0.90.101~18.04.80_i386.deb | Linux |
| Linux kernel (USN-5137-1) linux-image-lowlatency-hwe-18.04_5.4.0.90.101~18.04.80_amd64.deb | Linux |
| Linux kernel for NVIDIA BlueField platforms (USN-5137-2) linux-image-oracle_5.4.0.1057.61~18.04.37_amd64.deb | Linux |
| Linux kernel for NVIDIA BlueField platforms (USN-5137-2) linux-image-gke-5.4_5.4.0.1055.58~18.04.20_amd64.deb | Linux |
| Linux kernel for NVIDIA BlueField platforms (USN-5137-2) linux-image-5.4.0-1055-gke_5.4.0-1055.58~18.04.1_amd64.deb | Linux |
| Linux kernel for NVIDIA BlueField platforms (USN-5137-2) linux-image-oracle-lts-20.04_5.4.0.1057.57_amd64.deb | Linux |
| Linux kernel for NVIDIA BlueField platforms (USN-5137-2) linux-image-5.4.0-1057-oracle_5.4.0-1057.61_amd64.deb | Linux |
| Linux kernel for NVIDIA BlueField platforms (USN-5137-2) linux-image-5.4.0-1057-oracle_5.4.0-1057.61~18.04.1_amd64.deb | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-4.12.14-122.98.1.x86_64.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-base-4.12.14-122.98.1.x86_64.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-base-debuginfo-4.12.14-122.98.1.x86_64.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-debuginfo-4.12.14-122.98.1.x86_64.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-debugsource-4.12.14-122.98.1.x86_64.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-devel-4.12.14-122.98.1.x86_64.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-default-devel-debuginfo-4.12.14-122.98.1.x86_64.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-devel-4.12.14-122.98.1.noarch.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-macros-4.12.14-122.98.1.noarch.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-source-4.12.14-122.98.1.noarch.rpm | Linux |
| SUSE-SU-2021:3748-1(SUSE Linux Enterprise Server 12-SP5 ) kernel-syms-4.12.14-122.98.1.x86_64.rpm | Linux |
| kernel Security Update (ALAS-2021-1696) kernel-livepatch-4.14.241-184.433-1.0-0.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