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CVE-2019-11921

Quick assessment

Affected
Facebook Proxygen
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 Proxygen是美国Facebook公司的一套开源的C++HTTP类库。 Facebook Proxygen 2019.07.22.00之前版本中的配置存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

AI Predicted 7.5 Difficulty: Moderate EPSS 2.08% · P81
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I. Basic Information for CVE-2019-11921

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out of bounds write is possible via a specially crafted packet in certain configurations of Proxygen due to improper handling of Base64 when parsing malformed binary content in Structured HTTP Headers. This issue affects versions of proxygen prior to v2019.07.22.00.
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
Facebook Proxygen 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Facebook Proxygen是美国Facebook公司的一套开源的C++HTTP类库。 Facebook Proxygen 2019.07.22.00之前版本中的配置存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
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 Proxygen v2019.07.22.00 -

II. Public POCs for CVE-2019-11921

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III. Intelligence Information for CVE-2019-11921

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Patches & Fixes for CVE-2019-11921 (1)

Other References for CVE-2019-11921 (1)

IV. Related Vulnerabilities

Same product: Proxygen
Same vendor: Facebook

V. Comments for CVE-2019-11921

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