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CVE-2017-2630

Quick assessment

Affected
QEMU Qemu:
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.

QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 2.9之前版本中的nbd/client.c文件存在基于栈的缓冲区溢出漏洞，该漏洞源于程序没有充分的执行边界检测，导致复制数据的大小超过分配的内存缓冲区空间。攻击者可借助恶意的NBD服务器利用该漏洞造成远程NBD客户端崩溃并可能以QEMU进程权限执行任意代码。

AI Predicted 8.1 Difficulty: Moderate EPSS 2.65% · P84
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I. Basic Information for CVE-2017-2630

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
QEMU 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QEMU（又名Quick Emulator）是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 2.9之前版本中的nbd/client.c文件存在基于栈的缓冲区溢出漏洞，该漏洞源于程序没有充分的执行边界检测，导致复制数据的大小超过分配的内存缓冲区空间。攻击者可借助恶意的NBD服务器利用该漏洞造成远程NBD客户端崩溃并可能以QEMU进程权限执行任意代码。
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
QEMU Qemu: 2.9 -

II. Public POCs for CVE-2017-2630

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III. Intelligence Information for CVE-2017-2630

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Patches & Fixes for CVE-2017-2630 (1)

Vendor Advisories for CVE-2017-2630 (5)

Mailing List Discussions for CVE-2017-2630 (2)

Same Patch Batch · QEMU · 2018-07-27 · 6 CVEs total

CVE-2016-9603 QEMU 缓冲区错误漏洞
CVE-2017-15118 QEMU 缓冲区错误漏洞
CVE-2017-15119 QEMU 安全漏洞
CVE-2017-2620 QEMU 安全漏洞
CVE-2017-2633 QEMU 安全漏洞

IV. Related Vulnerabilities

Same product: Qemu:
Same vendor: QEMU
Same weakness: CWE-121

V. Comments for CVE-2017-2630

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