Vulnerability Monitor

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CVE-2019-13272

In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker). One contributing factor is an object lifetime issue (which can also cause a panic). Another contributing factor is incorrect marking of a ptrace relationship as privileged, which is exploitable through (for example) Polkit's pkexec helper with PTRACE_TRACEME. NOTE: SELinux deny_ptrace might be a usable workaround in some environments.

Published

2019-07-17T13:15:10.687

Last Modified

2025-04-03T20:28:35.577

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

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

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 3.16.71 Yes
Operating System linux linux_kernel < 4.2 Yes
Operating System linux linux_kernel < 4.4.185 Yes
Operating System linux linux_kernel < 4.9 Yes
Operating System linux linux_kernel < 4.9.185 Yes
Operating System linux linux_kernel < 4.14.133 Yes
Operating System linux linux_kernel < 4.19.58 Yes
Operating System linux linux_kernel < 5.1.17 Yes
Operating System debian debian_linux 8.0 Yes
Operating System debian debian_linux 9.0 Yes
Operating System debian debian_linux 10.0 Yes
Operating System fedoraproject fedora 29 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 19.04 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux_for_arm_64 7.0_aarch64 Yes
Operating System redhat enterprise_linux_for_ibm_z_systems 7.0_s390x Yes
Operating System redhat enterprise_linux_for_real_time 8 Yes
Operating System redhat enterprise_linux_for_real_time_for_nfv 8.0 Yes
Operating System redhat enterprise_linux_for_real_time_for_nfv_tus 8.2 Yes
Operating System redhat enterprise_linux_for_real_time_for_nfv_tus 8.4 Yes
Operating System redhat enterprise_linux_for_real_time_for_nfv_tus 8.6 Yes
Operating System redhat enterprise_linux_for_real_time_for_nfv_tus 8.8 Yes
Operating System redhat enterprise_linux_for_real_time_tus 8.2 Yes
Operating System redhat enterprise_linux_for_real_time_tus 8.4 Yes
Operating System redhat enterprise_linux_for_real_time_tus 8.6 Yes
Operating System redhat enterprise_linux_for_real_time_tus 8.8 Yes
Operating System netapp aff_a700s_firmware - Yes
Hardware netapp aff_a700s - No
Operating System netapp h410c_firmware - Yes
Hardware netapp h410c - No
Operating System netapp h610s_firmware - Yes
Hardware netapp h610s - No
Application netapp active_iq_unified_manager - Yes
Application netapp e-series_performance_analyzer - Yes
Application netapp e-series_santricity_os_controller ≤ 11.60.3 Yes
Application netapp hci_management_node - Yes
Application netapp service_processor - Yes
Application netapp solidfire - Yes
Application netapp steelstore_cloud_integrated_storage - Yes
Hardware netapp hci_compute_node - Yes
References