Allocation of Resources Without Limits or Throttling Affecting libcurl-devel package, versions <0:7.61.1-22.el8_6.4



    Attack Complexity Low
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.21% (59th percentile)
Expand this section
6.5 medium
Expand this section
4.9 medium
Expand this section
Red Hat
6.5 medium

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • published 28 Jun 2022
  • disclosed 27 Jun 2022

How to fix?

Upgrade RHEL:8 libcurl-devel to version 0:7.61.1-22.el8_6.4 or higher.
This issue was patched in RHSA-2022:6159.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by RHEL. See How to fix? for RHEL:8 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.