CVE-2015-8709

HighCVSS 7.0/10Last modified Jun 17, 2026

Description

kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here.

Metrics

CVSS 3.0 7.0/10CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-264

Affected software

No affected versions have been published.

Timeline

Published
Feb 8, 2016
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2015-8709: High severity, CVSS 7.0 | Vulnix