Allocation of Resources Without Limits or Throttling Affecting curl package, versions <8.2.1-1ubuntu3


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.73% (89th percentile)

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  • Snyk IDSNYK-UBUNTU2404-CURL-6698211
  • published29 Apr 2024
  • disclosed15 Sept 2023

Introduced: 15 Sep 2023

CVE-2023-38039  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Ubuntu:24.04 curl to version 8.2.1-1ubuntu3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Ubuntu. See How to fix? for Ubuntu:24.04 relevant fixed versions and status.

When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API.

However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory.

CVSS Scores

version 3.1