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CRITICAL

CVE-2022-38667

CVSS v3

9.8

CRITICAL

EPSS Score

3.4 %

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it has begun processing a later request before it has finished processing an earlier request.

Technical details

Published
2022-08-22

Frequently asked questions

What is CVE-2022-38667?

HTTP applications (servers) based on Crow through 1.0+4 may allow a Use-After-Free and code execution when HTTP pipelining is used. The HTTP parser supports HTTP pipelining, but the asynchronous Connection layer is unaware of HTTP pipelining. Specifically, the Connection layer is unaware that it has begun processing a later request before it has finished processing an earlier request.

Is CVE-2022-38667 actively exploited?

Active exploitation of CVE-2022-38667 has not been confirmed. The EPSS score is 3.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-38667?

CVE-2022-38667 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2022-38667 affecting your environment?

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