VDB

CISA-2019-13272

CISA-2019-13272 PUBLISHED CVSS 7.8 HIGH

Reported by mitre · Published July 17, 2019

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.

Risk Scores

CVSS 3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
n/an/an/a
n/an/an/a, *

Timeline

  • Jul 17, 2019 CVE Published
  • Oct 21, 2025 CVE Updated
  • Apr 26, 2026 Distribution Patch
  • Apr 26, 2026 Distribution Patch
  • Apr 26, 2026 Distribution Patch
  • Apr 26, 2026 Distribution Patch
  • Apr 26, 2026 Security Advisory
  • Apr 26, 2026 Security Advisory
  • Apr 26, 2026 Security Advisory
  • Apr 26, 2026 Security Advisory

References

…and 10 more

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