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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
linux linux kernel |
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redhat enterprise linux 8.0 |
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redhat openshift container platform 4.5 |
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redhat openshift container platform 4.6 |
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redhat openshift container platform 4.4 |
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