低危 Linux kernel权限提升漏洞(CNVD-2016-01042)

CVE编号

CVE-2015-8709

利用情况

暂无

补丁情况

官方补丁

披露时间

2016-02-08
漏洞描述
Linux kernel是一个开源,自由的操作系统核心,最初由Linus Torvalds完成。

Linux kernel 4.4.1及之前版本的kernel/ptrace.c文件中存在安全漏洞,该漏洞源于程序未能正确处理uid和gid映射。本地攻击者可通过建立用户命名空间,等待root进程使用不安全的uid或gid进入该命名空间后使用ptrace系统调用,利用该漏洞获取权限。
解决建议
用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞:
http://marc.info/?l=linux-kernel&m=145204641422813&w=2
参考链接
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html
http://marc.info/?l=linux-kernel&m=145204362722256&w=2
http://marc.info/?l=linux-kernel&m=145204641422813&w=2
http://www.debian.org/security/2016/dsa-3434
http://www.openwall.com/lists/oss-security/2015/12/17/12
http://www.openwall.com/lists/oss-security/2015/12/31/5
http://www.securityfocus.com/bid/79899
http://www.securitytracker.com/id/1034899
https://bugzilla.redhat.com/show_bug.cgi?id=1295287
https://lkml.org/lkml/2015/12/25/71
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
系统 amazon_AMI kernel * Up to
(excluding)
4.1.17-22.30.amzn1
运行在以下环境
系统 debian DPKG * Up to
(excluding)
4.3.3-3
运行在以下环境
系统 debian_10 linux * Up to
(excluding)
4.3.3-3
运行在以下环境
系统 debian_11 linux * Up to
(excluding)
4.3.3-3
运行在以下环境
系统 debian_12 linux * Up to
(excluding)
4.3.3-3
运行在以下环境
系统 fedora_22 kernel * Up to
(excluding)
4.3.4-200.fc22
运行在以下环境
系统 fedora_23 kernel * Up to
(excluding)
4.3.3-300.fc23
运行在以下环境
系统 linux linux_kernel * Up to
(including)
4.4.1
运行在以下环境
系统 opensuse_13.2 kernel * Up to
(excluding)
3.16.7-42.1
运行在以下环境
系统 opensuse_Leap_42.1 kernel * Up to
(excluding)
4.1.20-11.1
运行在以下环境
系统 opensuse_Leap_42.2 kernel * Up to
(excluding)
4.4.46-11.1
运行在以下环境
系统 suse_12 kernel-default-extra * Up to
(excluding)
3.12.55-52.42.1
运行在以下环境
系统 suse_12_SP1 kernel * Up to
(excluding)
3.12.57-60.35.1
运行在以下环境
系统 suse_12_SP2 kernel * Up to
(excluding)
4.4.49-92.11.1
运行在以下环境
系统 ubuntu_12.04.5_lts linux-lts-trusty * Up to
(excluding)
3.13.0-103.150~precise1
运行在以下环境
系统 ubuntu_14.04 linux-lts-vivid * Up to
(excluding)
3.13.0-103.150
运行在以下环境
系统 ubuntu_14.04.6_lts linux * Up to
(excluding)
3.13.0-103.150
运行在以下环境
系统 ubuntu_16.04 linux-raspi2 * Up to
(excluding)
4.4.0-1042.46
运行在以下环境
系统 ubuntu_16.04.7_lts linux * Up to
(excluding)
4.4.0-51.72
阿里云评分
2.3
  • 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
    有限影响
  • EXP成熟度
    未验证
  • 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
    无影响
  • 全网数量
    100
CWE-ID 漏洞类型
CWE-264 权限、特权和访问控制
阿里云安全产品覆盖情况