Tracker / CVE-2019-3901
CVE-2019-3901
Medium 4.7
A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.
Affected products and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel · … → 4.8 |
| netapp | active_iq_unified_manager_for_vmware_vsphere · 9.5 → … |
| netapp | cn1610_firmware |
| netapp | hci_management_node |
| netapp | snapprotect |
| netapp | solidfire |
| netapp | storage_replication_adapter_for_clustered_data_ontap_for_vmware_vsphere · 7.2 → … |
| netapp | vasa_provider_for_clustered_data_ontap · 7.2 → … |
| netapp | virtual_storage_console_for_vmware_vsphere · 7.2 → … |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.