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Alpine Linux: CVE-2023-39326: Vulnerability in Multiple Components

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Alpine Linux: CVE-2023-39326: Vulnerability in Multiple Components

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
12/06/2023
Created
08/23/2024
Added
08/22/2024
Modified
10/02/2024

Description

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.

Solution(s)

  • alpine-linux-upgrade-go

References

  • https://attackerkb.com/topics/cve-2023-39326
  • CVE - 2023-39326
  • https://security.alpinelinux.org/vuln/CVE-2023-39326
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