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 | eq | 2.6.29-rc8 | |
linux | eq | 3.3-rc7 | |
linux | eq | 2.6.22-rc4 | |
linux | eq | 2.6.29-rc5 | |
linux | eq | 2.6.18-rc3 | |
linux | eq | 4.1-rc8 | |
linux | eq | 2.6.39 | |
linux | eq | 2.6.22-rc2 | |
linux | eq | 2.6.33-rc2 | |
linux | eq | 2.6.35-rc6 |