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 | — | No solution existsUpgrade kernelUpgrade kernel-rt | Nov 10, 2021 | Feb 23, 2021 |
| Ubuntu | — | Upgrade linux-image-5.6.0-1053-oemUpgrade linux-image-5.8.0-1022-oracleUpgrade linux-image-5.4.0-1043-awsUpgrade linux-image-azureUpgrade linux-image-5.4.0-1037-kvmUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.8.0-1024-azureUpgrade linux-image-kvmUpgrade linux-image-oem-20.04bUpgrade linux-image-5.4.0-1042-oracleUpgrade linux-image-5.4.0-1041-gcpUpgrade linux-image-5.8.0-45-genericUpgrade linux-image-lowlatencyUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.8.0-1017-raspi-nolpaeUpgrade linux-image-5.8.0-45-generic-64kUpgrade linux-image-raspi-nolpaeUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-raspiUpgrade linux-image-5.10.0-1017-oemUpgrade linux-image-awsUpgrade linux-image-raspi2Upgrade linux-image-generic-hwe-18.04Upgrade linux-image-5.8.0-1020-kvmUpgrade linux-image-gke-5.4Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-virtual-hwe-18.04Upgrade linux-image-gkeUpgrade linux-image-5.4.0-1033-raspiUpgrade linux-image-oem-20.04Upgrade linux-image-5.8.0-45-generic-lpaeUpgrade linux-image-generic-lpae-hwe-18.04Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-gkeop-5.4Upgrade linux-image-5.4.0-71-lowlatencyUpgrade linux-image-oracleUpgrade linux-image-5.4.0-71-generic-lpaeUpgrade linux-image-genericUpgrade linux-image-oemUpgrade linux-image-5.4.0-1040-gkeUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-raspi-hwe-18.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-gkeopUpgrade linux-image-5.8.0-1017-raspiUpgrade linux-image-5.8.0-1025-awsUpgrade linux-image-5.4.0-1013-gkeopUpgrade linux-image-5.4.0-1044-azureUpgrade linux-image-oem-osp1Upgrade linux-image-generic-lpaeUpgrade linux-image-5.8.0-45-lowlatencyUpgrade linux-image-generic-64kUpgrade linux-image-5.4.0-71-genericUpgrade linux-image-gcpUpgrade linux-image-virtualUpgrade linux-image-5.8.0-1024-gcp | Mar 17, 2021 | Feb 23, 2021 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub