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CVE-2021-24029

Quick assessment

Affected
Facebook mvfst
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。 proxygen versions prior to v2021.03.15.00 存在安全漏洞，该漏洞源于通过失败的断言导致崩溃。

AI Predicted 5.3 Difficulty: Easy EPSS 1.19% · P67

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-24029

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A packet of death scenario is possible in mvfst via a specially crafted message during a QUIC session, which causes a crash via a failed assertion. Per QUIC specification, this particular message should be treated as a connection error. This issue affects mvfst versions prior to commit a67083ff4b8dcbb7ee2839da6338032030d712b0 and proxygen versions prior to v2021.03.15.00.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可达断言
Source: CVE Program / CVE List V5
Vulnerability Title
Facebook Proxygen 安全漏洞
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。 proxygen versions prior to v2021.03.15.00 存在安全漏洞，该漏洞源于通过失败的断言导致崩溃。
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 mvfst a67083ff4b8dcbb7ee2839da6338032030d712b0 ~ unspecified -
Facebook proxygen v2021.03.15.00 ~ unspecified -

II. Public POCs for CVE-2021-24029

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-24029

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Patches & Fixes for CVE-2021-24029 (1)

Other References for CVE-2021-24029 (1)

IV. Related Vulnerabilities

Same product: mvfst
Same vendor: Facebook
Same weakness: CWE-617

V. Comments for CVE-2021-24029

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