操作系统内存升级拒绝服务权限升级

admin

0
文章

0
评论

2023-12-02 12:06:46 Ali_nvd 来源：ZONE.CI 全球网 0 阅读模式

低危操作系统内存升级拒绝服务权限升级

CVE编号

CVE-2017-7533

利用情况

POC 已公开

补丁情况

官方补丁

披露时间

2017-08-06

漏洞描述

 Linux kernel through 4.12.4中的fsnotify实现中的争用条件允许本地用户通过精心设计的应用程序（其同时利用inotify_handle_event和vfs_rename函数的执行）获得特权或导致服务拒绝（内存损坏）。

解决建议

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载:http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=49d31c2f389acfe83417083e1208422b4091cd9ehttp://openwall.com/lists/oss-security/2017/08/03/2https://bugzilla.redhat.com/show_bug.cgi?id=1468283https://github.com/torvalds/linux/commit/49d31c2f389acfe83417083e1208422b4091cd9ehttps://patchwork.kernel.org/patch/9755753/https://patchwork.kernel.org/patch/9755757/

参考链接
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=49d...
http://openwall.com/lists/oss-security/2017/08/03/2
http://www.debian.org/security/2017/dsa-3927
http://www.debian.org/security/2017/dsa-3945
http://www.openwall.com/lists/oss-security/2019/06/27/7
http://www.openwall.com/lists/oss-security/2019/06/28/1
http://www.openwall.com/lists/oss-security/2019/06/28/2
http://www.securityfocus.com/bid/100123
http://www.securitytracker.com/id/1039075
https://access.redhat.com/errata/RHSA-2017:2473
https://access.redhat.com/errata/RHSA-2017:2585
https://access.redhat.com/errata/RHSA-2017:2669
https://access.redhat.com/errata/RHSA-2017:2770
https://access.redhat.com/errata/RHSA-2017:2869
https://bugzilla.redhat.com/show_bug.cgi?id=1468283
https://github.com/torvalds/linux/commit/49d31c2f389acfe83417083e1208422b4091cd9e
https://patchwork.kernel.org/patch/9755753/
https://patchwork.kernel.org/patch/9755757/
https://source.android.com/security/bulletin/2017-12-01
https://www.mail-archive.com/linux-kernel%40vger.kernel.org/msg1408967.html

受影响软件情况

1
#	类型	厂商	产品	版本	影响面
	运行在以下环境
	系统	linux	linux_kernel	*		Up to (including) 4.12.4
	运行在以下环境
	系统	redhat_7	kernel	*		Up to (excluding) 0:3.10.0-693.1.1.el7
	运行在以下环境
	系统	suse_12	kernel-default	*		Up to (excluding) 4.4.74-92.32
	运行在以下环境
	系统	ubuntu_14.04.6_lts	linux-aws	*		Up to (excluding) 4.4.0-1002.2
	运行在以下环境
	系统	ubuntu_16.04.7_lts	linux	*		Up to (excluding) 4.4.0-89.112