CVE-2017-15129

Advisory lineage Upstream: 0 Downstream: 23
Modified
Published: 09 Jan 2018, 19:00
Last modified:05 Aug 2024, 19:50

Vulnerability Summary

Overall Risk (default)
low
20/100
CVSS Score
4.9 MEDIUM
v2.0 (nvd)
EPSS Score
0.08% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jan 2018, 19:00
Published
Vulnerability first disclosed
05 Aug 2024, 19:50
Last Modified
Vulnerability information updated

Description

A use-after-free vulnerability was found in network namespaces code affecting the Linux kernel before 4.14.11. The function get_net_ns_by_id() in net/core/net_namespace.c does not check for the net::count value after it has found a peer network in netns_ids idr, which could lead to double free and memory corruption. This vulnerability could allow an unprivileged local user to induce kernel memory corruption on the system, leading to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is thought to be unlikely.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.08%• Percentile: 23%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 17.10

  • fedoraproject•fedora

    27

  • linux•linux_kernel

    ≥ 4.0, < 4.14.11 | 4.15:rc1 | 4.15:rc2 | 4.15:rc3 | 4.15:rc4

  • redhat•enterprise_linux

    7.0

  • redhat•enterprise_linux_compute_node_eus

    7.4

  • redhat•enterprise_linux_desktop

    7.0

  • redhat•enterprise_linux_eus

    7.4 | 7.6 | 7.7

  • redhat•enterprise_linux_for_ibm_z_systems

    7.0

  • redhat•enterprise_linux_for_ibm_z_systems_eus

    7.4

  • redhat•enterprise_linux_for_power_big_endian

    7.0

  • redhat•enterprise_linux_for_power_big_endian_eus

    7.4

  • redhat•enterprise_linux_for_power_little_endian_eus

    7.4

  • redhat•enterprise_linux_for_real_time

    7.0

  • redhat•enterprise_linux_for_real_time_for_nfv

    7

  • redhat•enterprise_linux_for_scientific_computing

    7.0

  • redhat•enterprise_linux_server

    7.0

  • redhat•enterprise_linux_server_aus

    7.4

  • redhat•enterprise_linux_server_tus

    7.4 | 7.6 | 7.7

  • redhat•enterprise_linux_server_update_services_for_sap_solutions

    7.4

  • redhat•enterprise_linux_workstation

    7.0

References (19)