CVE-2019-3901: Debian Linux

Medium severity, CVSS 4.7. EPSS: 0.3% chance of exploitation in the next 30 days.

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

• Debian Debian Linux: version 8.0 only
• Linux Linux Kernel: before 4.8 (fixed in 4.8)
• Netapp Active Iq Unified Manager For VMware Vsphere: from 9.5
• Netapp CN1610 Firmware: affected versions not specified
• Netapp Hci Management Node: affected versions not specified
• Netapp Snapprotect: affected versions not specified
• Netapp Solidfire: affected versions not specified
• Netapp Storage Replication Adapter For Clustered Data Ontap For VMware Vsphere: from 7.2
• Netapp Vasa Provider For Clustered Data Ontap: from 7.2
• Netapp Virtual Storage Console For VMware Vsphere: from 7.2

Published 2019-04-22. Last modified 2026-06-17.