CVE-2019-13272 - CVE House
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Status published Unknown CVE-2019-13272

In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

linux kernel, debian linux, fedora, ubuntu linux, enterprise linux, enterprise linux for arm 64, enterprise linux for ibm z systems, enterprise linux for real time, enterprise linux for real time for nfv, enterprise linux for real time for nfv tus, enterprise linux for real time tus, aff a700s firmware, h410c firmware, h610s firmware, active iq unified manager, e-series performance analyzer, e-series santricity os controller, hci management node, service processor, solidfire, steelstore cloud integrated storage, hci compute node
Vulnerable Versions:
3.16.52, 4.1.39, 4.4.40, 4.8.16, 4.9.1, 4.10, 4.15, 4.20, 8.0, 9.0, 10.0, 29, 16.04, 18.04, 19.04, 7.0, 7.0_aarch64, 7.0_s390x, 8, 8.2, 8.4, 8.6, 8.8, 11.0.0

Timeline

Official Publish: July 17th, 2019
Last Modified: October 21st, 2025
Added to House: July 20th, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.