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Linux Kernel における解放済みメモリの使用に関する脆弱性
Title Linux Kernel における解放済みメモリの使用に関する脆弱性
Summary

Linux Kernel には、解放済みメモリの使用に関する脆弱性が存在します。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date Dec. 20, 2017, midnight
Registration Date Feb. 21, 2018, 2:34 p.m.
Last Update Feb. 21, 2018, 2:34 p.m.
CVSS3.0 : 警告
Score 5.5
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS2.0 : 警告
Score 4.9
Vector AV:L/AC:L/Au:N/C:N/I:N/A:C
Affected System
Linux
Linux Kernel 4.14.11 未満
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2018年02月21日]
  掲載		 Feb. 21, 2018, 2:34 p.m.
NVD Vulnerability Information
CVE-2017-15129
Summary

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.

Publication Date Jan. 10, 2018, 4:29 a.m.
Registration Date Jan. 26, 2021, 1:16 p.m.
Last Update Nov. 21, 2024, 12:14 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.0 4.14.11
Configuration2 or higher or less more than less than
cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*
Configuration3 or higher or less more than less than
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Configuration4 or higher or less more than less than
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_real_time:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:7.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.4:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List