Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / kernel | affected kernel 5.2 and higher. |
CWE
CWE-20
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1912683
- https://security.netapp.com/advisory/ntap-20210326-0003/
ADP enrichment
No English description supplied.