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.
CPE | Name | Operator | Version |
---|---|---|---|
linux_kernel | gt | 5.2 | |
enterprise_linux | eq | 8.0 | |
openshift_container_platform | eq | 4.5 | |
openshift_container_platform | eq | 4.6 | |
openshift_container_platform | eq | 4.4 |