CVE-2015-8777
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.
GNU C Library（又名glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.23之前版本的elf/rtld.c文件中的‘process_envvars’函数存在安全漏洞。本地攻击者可借助LD_POINTER_GUARD环境变量的零值利用该漏洞绕过pointer-guarding保护机制。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1059.004 · Unix Shell T1556.001 · Domain Controller Authentication
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I. Basic Information for CVE-2015-8777
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable.
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
GNU C Library 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU C Library（又名glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。 GNU C Library 2.23之前版本的elf/rtld.c文件中的‘process_envvars’函数存在安全漏洞。本地攻击者可借助LD_POINTER_GUARD环境变量的零值利用该漏洞绕过pointer-guarding保护机制。
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-2015-8777
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2015-8777 (7)
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🔗 USN-2985-1: GNU C Library vulnerabilities | Ubuntu security notices | Ubuntu Read full article vendor-advisory x_refsource_UBUNTU
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Mailing List Discussions for CVE-2015-8777 (6)
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http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html vendor-advisory x_refsource_SUSE
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http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html vendor-advisory x_refsource_FEDORA
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Other References for CVE-2015-8777 (2)
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https://sourceware.org/bugzilla/show_bug.cgi?id=18928 x_refsource_CONFIRM
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http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html x_refsource_MISC
Same Patch Batch · n/a · 2016-01-20 · 13 CVEs total
| CVE-2015-5295 | OpenStack 缓冲区错误漏洞 | |
| CVE-2015-5516 | 多款F5产品内存泄露漏洞 | |
| CVE-2016-1867 | JasPer 拒绝服务漏洞 | |
| CVE-2016-1899 | cgit ui-blob处理器CRLF注入漏洞 | |
| CVE-2016-1900 | cgit CRLF注入漏洞 | |
| CVE-2016-1901 | cgit 整数溢出漏洞 | |
| CVE-2016-1928 | SAP HANA XS引擎缓冲区溢出漏洞 | |
| CVE-2016-1929 | SAP HANA XS引擎安全漏洞 | |
| CVE-2015-8704 | ISC BIND 拒绝服务漏洞 | |
| CVE-2015-8705 | ISC BIND named 拒绝服务漏洞 | |
| CVE-2015-4951 | IBM Spectrum Protect 拒绝服务漏洞 | |
| CVE-2016-1296 | Cisco Web Security Appliance 安全漏洞 |
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V. Comments for CVE-2015-8777
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