CVE - CVE-2023-38697

CVE-ID
CVE-2023-38697	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
protocol-http1 provides a low-level implementation of the HTTP/1 protocol. RFC 9112 Section 7.1 defined the format of chunk size, chunk data and chunk extension. The value of Content-Length header should be a string of 0-9 digits, the chunk size should be a string of hex digits and should split from chunk data using CRLF, and the chunk extension shouldn't contain any invisible character. However, Falcon has following behaviors while disobey the corresponding RFCs: accepting Content-Length header values that have `+` prefix, accepting Content-Length header values that written in hexadecimal with `0x` prefix, accepting `0x` and `+` prefixed chunk size, and accepting LF in chunk extension. This behavior can lead to desync when forwarding through multiple HTTP parsers, potentially results in HTTP request smuggling and firewall bypassing. This issue is fixed in `protocol-http1` v0.15.1. There are no known workarounds.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/socketry/protocol-http1/commit/e11fc164fd2b36f7b7e785e69fa8859eb06bcedd URL:https://github.com/socketry/protocol-http1/commit/e11fc164fd2b36f7b7e785e69fa8859eb06bcedd MISC:https://github.com/socketry/protocol-http1/pull/20 URL:https://github.com/socketry/protocol-http1/pull/20 MISC:https://github.com/socketry/protocol-http1/security/advisories/GHSA-6jwc-qr2q-7xwj URL:https://github.com/socketry/protocol-http1/security/advisories/GHSA-6jwc-qr2q-7xwj MISC:https://www.rfc-editor.org/rfc/rfc9112#name-chunked-transfer-coding URL:https://www.rfc-editor.org/rfc/rfc9112#name-chunked-transfer-coding
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20230724	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230724)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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