CVE-2015-8709

Advisory lineage Upstream: 0 Downstream: 22
Modified
Published: 08 Feb 2016, 02:00
Last modified:06 Aug 2024, 08:29

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7 HIGH
v3.0 (nvd)
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Feb 2016, 02:00
Published
Vulnerability first disclosed
06 Aug 2024, 08:29
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
  • v2.0•MEDIUM•Score: 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.06%• Percentile: 19%

Techniques & Countermeasures

  • CWE-264•Permissions, Privileges, and Access Controls

    Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.

Affected Systems

  • linux•linux_kernel

    ≤ 4.4.1

References (25)