Allocation of Resources Without Limits or Throttling Affecting curl package, versions <7.74.0-1.3+deb11u2


0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Availability High
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NVD
6.5 medium
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SUSE
4.9 medium
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Red Hat
6.5 medium

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  • Snyk ID SNYK-DEBIAN11-CURL-2936233
  • published 28 Jun 2022
  • disclosed 7 Jul 2022

How to fix?

Upgrade Debian:11 curl to version 7.74.0-1.3+deb11u2 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 Debian:11. See How to fix? for Debian:11 relevant fixed versions and status.

curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.