This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-13661.
CVSS Details
- CVSS 3.1 Base Score: 7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
- CVSS 3.0 Base Score: 8.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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 | May 21, 2021 |
| Amazon Linux Ami 2 | — | Upgrade perf-debuginfoUpgrade kernel-toolsUpgrade python-perfUpgrade perfUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade bpftool-debuginfoUpgrade bpftool | Jul 4, 2022 | May 21, 2021 |
| Centos_linux | — | Upgrade kernelUpgrade kernel-rt | Nov 10, 2021 | May 21, 2021 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2021 |
| Oracle_linux | — | Upgrade kernel | Nov 18, 2021 | May 21, 2021 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernel | Nov 10, 2021 | May 21, 2021 |
| Suse | — | Upgrade kernel-livepatch-5_3_18-57-default | Feb 4, 2022 | May 21, 2021 |
| Ubuntu | — | Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-awsUpgrade linux-image-raspiUpgrade linux-image-5.11.0-22-lowlatencyUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.8.0-1033-oracleUpgrade linux-image-azureUpgrade linux-image-kvmUpgrade linux-image-5.8.0-1029-raspiUpgrade linux-image-5.8.0-1029-raspi-nolpaeUpgrade linux-image-generic-hwe-20.04Upgrade linux-image-5.8.0-1036-azureUpgrade linux-image-oracleUpgrade linux-image-5.8.0-59-genericUpgrade linux-image-5.11.0-22-generic-64kUpgrade linux-image-5.8.0-1030-kvmUpgrade linux-image-5.8.0-59-generic-lpaeUpgrade linux-image-5.8.0-1038-awsUpgrade linux-image-5.8.0-59-generic-64kUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.11.0-1011-gcpUpgrade linux-image-5.8.0-1035-gcpUpgrade linux-image-5.11.0-1012-raspiUpgrade linux-image-5.11.0-1012-raspi-nolpaeUpgrade linux-image-virtualUpgrade linux-image-5.11.0-1010-oracleUpgrade linux-image-generic-64kUpgrade linux-image-5.10.0-1033-oemUpgrade linux-image-oem-20.04Upgrade linux-image-5.11.0-1011-awsUpgrade linux-image-5.8.0-59-lowlatencyUpgrade linux-image-genericUpgrade linux-image-5.11.0-1009-kvmUpgrade linux-image-gcpUpgrade linux-image-generic-lpaeUpgrade linux-image-lowlatencyUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.11.0-22-genericUpgrade linux-image-oem-20.04bUpgrade linux-image-5.11.0-22-generic-lpaeUpgrade linux-image-gkeUpgrade linux-image-5.11.0-1009-azure | Jun 23, 2021 | May 21, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 21, 2021 |
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