CVEvulnerability

CVE-2019-3901

4.7 MEDIUM Published 2019-04-22 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-04-22
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 3.0 ([email protected])
5.6 MEDIUM — CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS 2.0 ([email protected])
1.9 LOW — AV:L/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-667

Description

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 configurations

• linux linux kernel (< 4.8) • debian debian linux 8.0 • netapp active iq unified manager for vmware vsphere (>= 9.5) • 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) • netapp cn1610 firmware

Related

Weakness · CWE (1)

  • CWE-667 Improper Locking weakness

References