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CVE-2017-8284

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.

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 2.9.0之前的版本中的target/i386/translate.c文件的‘disas_insn’函数存在安全漏洞，该漏洞源于程序没有限制指令的大小。本地攻击者可通过创建特制的基本块数据利用该漏洞获取权限。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.44% · P38

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2017-8284

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated "this bug does not violate any security guarantees QEMU makes.
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
QEMU 安全漏洞
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 2.9.0之前的版本中的target/i386/translate.c文件的‘disas_insn’函数存在安全漏洞，该漏洞源于程序没有限制指令的大小。本地攻击者可通过创建特制的基本块数据利用该漏洞获取权限。
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 -

II. Public POCs for CVE-2017-8284

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III. Intelligence Information for CVE-2017-8284

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Patches & Fixes for CVE-2017-8284 (1)

Other References for CVE-2017-8284 (1)

Same Patch Batch · n/a · 2017-04-26 · 6 CVEs total

CVE-2017-6052 Hyundai Motor America Blue Link 安全漏洞
CVE-2017-6054 Hyundai Motor America Blue Link 安全漏洞
CVE-2017-7720 OpenVPN PrivateTunnel 缓冲区错误漏洞
CVE-2017-7293 Dolby Audio X2和Dolby Audio X3 代码问题漏洞
CVE-2017-8283 Dolby Audio X2和Dolby Audio X3 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2017-8284

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