CVE-2021-20194

There is a vulnerability in the linux kernel versions higher than 5.2 (if kernel compiled with config params CONFIG_BPF_SYSCALLy , CONFIG_BPFy , CONFIG_CGROUPSy , CONFIG_CGROUP_BPFy , 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.

Publication date: Wed, 24 Feb 2021 05:15:00 +0000

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CVE-2021-20194 - There is a vulnerability in the linux kernel versions higher than 5.2 (if kernel compiled with config params CONFIG_BPF_SYSCALLy , CONFIG_BPFy , CONFIG_CGROUPSy , CONFIG_CGROUP_BPFy , CONFIG_HARDENED_USERCOPY not set, and BPF hook to getsockopt is ...
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CVE-2021-20194

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