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Vijay Anusuri
a2bf2f28c4
A malicious HTTP sender can use chunk extensions to cause a receiver reading from a request or response body to read many more bytes from the network than are in the body. A malicious HTTP client can further exploit this to cause a server to automatically read a large amount of data (up to about 1GiB) when a handler fails to read the entire body of a request. Chunk extensions are a little-used HTTP feature which permit including additional metadata in a request or response body sent using the chunked encoding. The net/http chunked encoding reader discards this metadata. A sender can exploit this by inserting a large metadata segment with each byte transferred. The chunk reader now produces an error if the ratio of real body to encoded bytes grows too small. References: https://nvd.nist.gov/vuln/detail/CVE-2023-39326 https://security-tracker.debian.org/tracker/CVE-2023-39326 (From OE-Core rev: 5b55648f3142762c9563289c1b19aa3b7de27164) Signed-off-by: Vijay Anusuri <vanusuri@mvista.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>