CVE-2023-39326 Affecting slsa-verifier package, versions <2.4.1-r1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-WOLFILATEST-SLSAVERIFIER-6252473
  • published18 Feb 2024
  • disclosed6 Dec 2023

Introduced: 6 Dec 2023

CVE-2023-39326  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Wolfi slsa-verifier to version 2.4.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream slsa-verifier package and not the slsa-verifier package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

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.

CVSS Scores

version 3.1