CVE-2015-8709
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 4.4.1及之前版本的kernel/ptrace.c文件中存在安全漏洞，该漏洞源于程序没有正确处理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。（说明：厂商声明“此处不存在内核错误”）
Possible ATT&CK Techniques 3 AI
T1069 · Permission Groups Discovery T1548 · Abuse Elevation Control Mechanism T1548.003 · Sudo and Sudo Caching
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I. Basic Information for CVE-2015-8709
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。NFSv4 implementation是其中的一个分布式文件系统协议。 Linux kernel 4.4.1及之前版本的kernel/ptrace.c文件中存在安全漏洞，该漏洞源于程序没有正确处理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。（说明：厂商声明“此处不存在内核错误”）
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2015-8709
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2015-8709 (4)
Mailing List Discussions for CVE-2015-8709 (20)
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html vendor-advisory x_refsource_SUSE
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http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html vendor-advisory x_refsource_FEDORA
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Other References for CVE-2015-8709 (1)
Same Patch Batch · n/a · 2016-02-08 · 27 CVEs total
| CVE-2016-2230 | OpenELEC和RasPlex 安全漏洞 | |
| CVE-2016-0728 | Linux kernel 安全漏洞 | |
| CVE-2016-0723 | Linux kernel‘tty_ioctl’函数竞争条件漏洞 | |
| CVE-2015-8787 | Linux kernel‘nf_nat_redirect_ipv4’函数拒绝服务漏洞 | |
| CVE-2015-8785 | Linux kernel‘fuse_fill_write_pages’函数本地拒绝服务漏洞 | |
| CVE-2015-8767 | Linux kernel 拒绝服务漏洞 | |
| CVE-2015-8575 | Linux kernel 本地信息泄露漏洞 | |
| CVE-2015-8539 | Linux kernel KEYS子系统安全漏洞 | |
| CVE-2015-7566 | Linux kernel‘clie_5_attach’函数拒绝服务漏洞 | |
| CVE-2015-7550 | Linux kernel‘keyctl_read_key’函数本地拒绝服务漏洞 | |
| CVE-2015-7513 | Linux kernel 拒绝服务漏洞 | |
| CVE-2013-4312 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2016-0603 | Oracle Java SE Install子组件安全漏洞 | |
| CVE-2014-9757 | Atlassian Bamboo Ignite Realtime Smack XMPP API 安全漏洞 | |
| CVE-2016-2201 | Siemens SIMATIC S7-1500 CPU 安全漏洞 | |
| CVE-2016-2200 | Siemens SIMATIC S7-1500 CPU 拒绝服务漏洞 | |
| CVE-2015-2012 | IBM WebSphere MQ WMQ Telemetry 安全漏洞 | |
| CVE-2016-2268 | Dell SecureWorks app for iOS 安全漏洞 | |
| CVE-2016-2214 | Huawei Agile Controller-Campus 跨站脚本漏洞 | |
| CVE-2016-2091 | libdwarf 拒绝服务漏洞 |
Showing top 20 of 27 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2015-8709
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