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CVE-2018-6340

Quick assessment

Affected
Facebook HHVM
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.

Facebook HHVM（又名HipHop Virtual Machine）是美国Facebook公司的一款能够显著提高PHP加载动态页面性能的虚拟机。 Facebook HHVM 3.30及之前版本和3.27.4及之前版本中的‘Memcache::getextendedstats’函数存在栈越界读取漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

AI Predicted 5.3 Difficulty: Moderate EPSS 1.43% · P72

Possible ATT&CK Techniques 1 AI

T1041 · Exfiltration Over C2 Channel
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I. Basic Information for CVE-2018-6340

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Memcache::getextendedstats function can be used to trigger an out-of-bounds read. Exploiting this issue requires control over memcached server hostnames and/or ports. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Facebook HHVM 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Facebook HHVM（又名HipHop Virtual Machine）是美国Facebook公司的一款能够显著提高PHP加载动态页面性能的虚拟机。 Facebook HHVM 3.30及之前版本和3.27.4及之前版本中的‘Memcache::getextendedstats’函数存在栈越界读取漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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
Facebook HHVM 3.30.1 -

II. Public POCs for CVE-2018-6340

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III. Intelligence Information for CVE-2018-6340

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Patches & Fixes for CVE-2018-6340 (1)

Security Blog Posts for CVE-2018-6340 (1)

Same Patch Batch · Facebook · 2018-12-31 · 13 CVEs total

CVE-2018-6331 Buck 安全漏洞
CVE-2018-6333 Nuclide 安全漏洞
CVE-2018-6337 Facebook HHVM和folly library 安全漏洞
CVE-2018-6341 React 跨站脚本漏洞
CVE-2018-6342 react-dev-utils 安全漏洞
CVE-2018-6343 Facebook Proxygen 安全漏洞
CVE-2018-6344 Facebook WhatsApp 缓冲区错误漏洞
CVE-2018-6346 Facebook Proxygen 安全漏洞
CVE-2018-6347 Facebook Proxygen HTTP2 Parser 安全漏洞
CVE-2018-6334 Facebook HHVM 安全漏洞
CVE-2018-6335 Facebook HHVM 安全漏洞
CVE-2018-6336 Facebook osquery 安全特征问题漏洞

IV. Related Vulnerabilities

Same product: HHVM
Same vendor: Facebook
Same weakness: CWE-125

V. Comments for CVE-2018-6340

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