CVE-2014-5045
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 3.15.7及之前版本的fs/namei.c文件中的‘mountpoint_last’函数存在安全漏洞，该漏洞源于程序使用与结合符号链接相结合的umount系统调用时，没有正确维护引用计数。本地攻击者可通过umount程序利用该漏洞造成拒绝服务（内存消耗或释放后重用）。
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I. Basic Information for CVE-2014-5045
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.
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 后置链接漏洞
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 3.15.7及之前版本的fs/namei.c文件中的‘mountpoint_last’函数存在安全漏洞，该漏洞源于程序使用与结合符号链接相结合的umount系统调用时，没有正确维护引用计数。本地攻击者可通过umount程序利用该漏洞造成拒绝服务（内存消耗或释放后重用）。
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-2014-5045
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2014-5045 (2)
Vendor Advisories for CVE-2014-5045 (3)
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https://bugzilla.redhat.com/show_bug.cgi?id=1122472 x_refsource_CONFIRM
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Mailing List Discussions for CVE-2014-5045 (1)
Other References for CVE-2014-5045 (1)
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http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8 x_refsource_CONFIRM
Same Patch Batch · n/a · 2014-08-01 · 13 CVEs total
| CVE-2014-0972 | Linux kernel kgsl 权限许可和访问控制漏洞 | |
| CVE-2014-3534 | Linux kernel 权限许可和访问控制问题漏洞 | |
| CVE-2014-5077 | Linux kernel 代码问题漏洞 | |
| CVE-2014-5160 | HP Data Protector 目录遍历漏洞 | |
| CVE-2014-5161 | Wireshark IrDA解析器缓冲区溢出漏洞 | |
| CVE-2014-5162 | Wireshark Catapult DCT2000解析器缓冲区溢出漏洞 | |
| CVE-2014-5163 | Wireshark GTP and GSM Management解析器缓冲区溢出漏洞 | |
| CVE-2014-5164 | Wireshark RLC解析器缓冲区溢出漏洞 | |
| CVE-2014-5165 | Wireshark ASN.1 BER解析器缓冲区溢出漏洞 | |
| CVE-2014-2627 | HP NonStop NetBatch 安全漏洞 | |
| CVE-2014-3009 | IBM InfoSphere MDM-Collaborative Edition和InfoSphere MDM Server for PIM 输入验证漏洞 | |
| CVE-2014-3302 | Cisco WebEx Meetings Server‘user.php’信息泄露漏洞 |
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V. Comments for CVE-2014-5045
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