There is a vulnerability in the linux kernel versions higher than 5.2 (if kernel compiled with config params CONFIG_BPF_SYSCALL=y , CONFIG_BPF=y , CONFIG_CGROUPS=y , CONFIG_CGROUP_BPF=y , CONFIG_HARDENED_USERCOPY not set, and BPF hook to getsockopt is registered). As result of BPF execution, the local user can trigger bug in __cgroup_bpf_run_filter_getsockopt() function that can lead to heap overflow (because of non-hardened usercopy). The impact of attack could be deny of service or possibly privileges escalation.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-tools-libs-devel | May 4, 2022 | Feb 23, 2021 |
| Centos_linux | — | Upgrade kernelUpgrade kernel-rt | Nov 10, 2021 | Feb 23, 2021 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Feb 23, 2021 |
| Oracle_linux | — | Upgrade kernel | Nov 18, 2021 | Jan 22, 2021 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernelNo solution exists | Nov 10, 2021 | Feb 23, 2021 |
| Ubuntu | — | Upgrade linux-image-5.4.0-1042-oracleUpgrade linux-image-oem-20.04bUpgrade linux-image-5.8.0-1020-kvmUpgrade linux-image-5.10.0-1017-oemUpgrade linux-image-raspi2Upgrade linux-image-5.8.0-1022-oracleUpgrade linux-image-5.8.0-45-generic-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-kvmUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.8.0-1024-azureUpgrade linux-image-azureUpgrade linux-image-5.6.0-1053-oemUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.8.0-45-genericUpgrade linux-image-5.4.0-1043-awsUpgrade linux-image-raspiUpgrade linux-image-5.4.0-1037-kvmUpgrade linux-image-5.4.0-1041-gcpUpgrade linux-image-lowlatencyUpgrade linux-image-awsUpgrade linux-image-5.8.0-1017-raspi-nolpaeUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-5.4.0-71-lowlatencyUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-virtualUpgrade linux-image-generic-64kUpgrade linux-image-5.4.0-1044-azureUpgrade linux-image-5.4.0-1013-gkeopUpgrade linux-image-5.8.0-45-lowlatencyUpgrade linux-image-oem-osp1Upgrade linux-image-5.8.0-1024-gcpUpgrade linux-image-gcpUpgrade linux-image-5.4.0-71-genericUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-gkeop-5.4Upgrade linux-image-gkeUpgrade linux-image-gke-5.4Upgrade linux-image-5.4.0-71-generic-lpaeUpgrade linux-image-5.8.0-45-generic-lpaeUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-oem-20.04Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-oemUpgrade linux-image-5.4.0-1033-raspiUpgrade linux-image-genericUpgrade linux-image-oracleUpgrade linux-image-5.8.0-1025-awsUpgrade linux-image-gkeopUpgrade linux-image-5.4.0-1040-gkeUpgrade linux-image-5.8.0-1017-raspiUpgrade linux-image-generic-lpae | Mar 17, 2021 | Feb 23, 2021 |
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