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| CVE ID: | CVE-2021-20194 |
| Description: | 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. |
| Test IDs: | 1.3.6.1.4.1.25623.1.0.878937 1.3.6.1.4.1.25623.1.0.878934 |
| Cross References: |
Common Vulnerability Exposure (CVE) ID: CVE-2021-20194 https://bugzilla.redhat.com/show_bug.cgi?id=1912683 https://bugzilla.redhat.com/show_bug.cgi?id=1912683 https://security.netapp.com/advisory/ntap-20210326-0003/ https://security.netapp.com/advisory/ntap-20210326-0003/ |