VYPR
← All advisories
High severity7.8CISA KEVNVD Advisory· Published Jul 17, 2019· Updated Jun 17, 2026

CVE-2019-13272

CVE-2019-13272

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

117

Patches

Vulnerability mechanics

References

30

News mentions

1