Vulnerability Monitor

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CVE-2019-3901

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.

Published

2019-04-22T16:29:01.850

Last Modified

2024-11-21T04:42:49.780

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.7 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:N/A:N

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

3.4

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-667
  • Type: Secondary
    CWE-667
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.8 Yes
Operating System debian debian_linux 8.0 Yes
Application netapp active_iq_unified_manager_for_vmware_vsphere ≥ 9.5 Yes
Application netapp hci_management_node - Yes
Application netapp snapprotect - Yes
Application netapp solidfire - Yes
Application netapp storage_replication_adapter_for_clustered_data_ontap_for_vmware_vsphere ≥ 7.2 Yes
Application netapp vasa_provider_for_clustered_data_ontap ≥ 7.2 Yes
Application netapp virtual_storage_console_for_vmware_vsphere ≥ 7.2 Yes
Operating System netapp cn1610_firmware - Yes
Hardware netapp cn1610 - No
References