中危 INUX KERNEL UP TO 4.20.7 REFERENCE COUNTING VIRT/KVM/KVM_MAIN.C KVM_IOCTL_CREATE_DEVICE RACE CONDITION

CVE编号

CVE-2019-6974

利用情况

POC 已公开

补丁情况

官方补丁

披露时间

2019-02-16
漏洞描述
在4.20.8之前的Linux内核中,virt / kvm / kvm_main.c中的kvm_ioctl_create_device由于竞争条件而错误地处理引用计数,从而导致UAF。

解决建议
目前厂商已发布升级补丁以修复漏洞,补丁获取链接:
https://www.linux.org/
受影响软件情况
# 类型 厂商 产品 版本 影响面
1
运行在以下环境
应用 f5 big-ip_access_policy_manager * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_access_policy_manager * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_advanced_firewall_manager * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_advanced_firewall_manager * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_analytics * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_analytics * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_application_acceleration_manager * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_application_acceleration_manager * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_application_security_manager * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_application_security_manager * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_edge_gateway * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_edge_gateway * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_fraud_protection_service * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_fraud_protection_service * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_global_traffic_manager * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_global_traffic_manager * From
(including)
14.0.0
Up to
(including)
14.1.0
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应用 f5 big-ip_link_controller * From
(including)
13.0.0
Up to
(including)
13.1.1
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应用 f5 big-ip_link_controller * From
(including)
14.0.0
Up to
(including)
14.1.0
运行在以下环境
应用 f5 big-ip_local_traffic_manager * From
(including)
13.0.0
Up to
(including)
13.1.1
运行在以下环境
应用 f5 big-ip_local_traffic_manager * From
(including)
14.0.0
Up to
(including)
14.1.0
运行在以下环境
应用 f5 big-ip_policy_enforcement_manager * From
(including)
13.0.0
Up to
(including)
13.1.1
运行在以下环境
应用 f5 big-ip_policy_enforcement_manager * From
(including)
14.0.0
Up to
(including)
14.1.0
运行在以下环境
应用 f5 big-ip_webaccelerator * From
(including)
13.0.0
Up to
(including)
13.1.1
运行在以下环境
应用 f5 big-ip_webaccelerator * From
(including)
14.0.0
Up to
(including)
14.1.0
运行在以下环境
应用 redhat openshift_container_platform 3.11 -
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系统 amazon_2 kernel * Up to
(excluding)
4.14.101-91.76.amzn2
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系统 amazon_AMI kernel * Up to
(excluding)
4.14.101-75.76.amzn1
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系统 canonical ubuntu_linux 12.04 -
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系统 canonical ubuntu_linux 14.04 -
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系统 canonical ubuntu_linux 16.04 -
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系统 canonical ubuntu_linux 18.04 -
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系统 canonical ubuntu_linux 18.10 -
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系统 centos_7 kernel * Up to
(excluding)
3.10.0-957.12.1.el7
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系统 debian debian_linux 8.0 -
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系统 debian_10 linux * Up to
(excluding)
4.19.20-1
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系统 debian_11 linux * Up to
(excluding)
4.19.20-1
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系统 debian_12 linux * Up to
(excluding)
4.19.20-1
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系统 fedora_28 kernel * Up to
(excluding)
4.20.8-100.fc28
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系统 fedora_29 kernel * Up to
(excluding)
4.20.8-200.fc29
运行在以下环境
系统 kylinos_aarch64_V10 kernel * Up to
(excluding)
4.19.90-21.2.1
运行在以下环境
系统 kylinos_x86_64_V10 kernel * Up to
(excluding)
4.19.90-21.2.1
运行在以下环境
系统 linux linux_kernel * Up to
(excluding)
4.20.8
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系统 opensuse_Leap_15.0 kernel * Up to
(excluding)
4.12.14-lp150.12.48.1
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系统 oracle_6 kernel * Up to
(excluding)
4.1.12-124.43.4.el7uek
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系统 oracle_7 kernel * Up to
(excluding)
4.1.12-124.43.4.el7uek
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系统 redhat enterprise_linux 7.0 -
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系统 redhat enterprise_linux_desktop 7.0 -
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系统 redhat enterprise_linux_server 7.0 -
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系统 redhat enterprise_linux_server_aus 7.6 -
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系统 redhat enterprise_linux_server_eus 7.6 -
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系统 redhat enterprise_linux_server_tus 7.6 -
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系统 redhat enterprise_linux_workstation 7.0 -
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系统 redhat_7 kernel * Up to
(excluding)
3.10.0-957.12.1.el7
运行在以下环境
系统 suse_12_SP3 kernel * Up to
(excluding)
4.4.176-4.25.1
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系统 suse_12_SP4 kernel * Up to
(excluding)
4.12.14-6.9.1
运行在以下环境
系统 ubuntu_14.04 linux * Up to
(excluding)
4.4.0-144.170~14.04.1
运行在以下环境
系统 ubuntu_16.04 linux * Up to
(excluding)
4.15.0-1041.45
运行在以下环境
系统 ubuntu_18.04 linux * Up to
(excluding)
4.15.0-1010.12
阿里云评分
5.3
  • 攻击路径
    本地
  • 攻击复杂度
    困难
  • 权限要求
    普通权限
  • 影响范围
    越权影响
  • EXP成熟度
    POC 已公开
  • 补丁情况
    官方补丁
  • 数据保密性
    无影响
  • 数据完整性
    无影响
  • 服务器危害
    服务器失陷
  • 全网数量
    N/A
CWE-ID 漏洞类型
CWE-362 使用共享资源的并发执行不恰当同步问题(竞争条件)
CWE-416 释放后使用
阿里云安全产品覆盖情况