DEBIAN-CVE-2015-8709

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2015-8709
Published: 08 Feb 2016, 03:59
Last modified:28 Apr 2026, 20:14

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7 HIGH
3.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Feb 2016, 03:59
Published
Vulnerability first disclosed
28 Apr 2026, 20:14
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.0•HIGH•Score: 7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    < 4.3.3-3 | < 4.3.3-3 | < 4.3.3-3 | < 4.3.3-3

References (1)