Allocation of Resources Without Limits or Throttling Affecting curl package, versions <7.74.0-1.3+deb11u7
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Test your applications- Snyk ID SNYK-DEBIAN11-CURL-3320498
- published 15 Feb 2023
- disclosed 23 Feb 2023
Introduced: 15 Feb 2023
CVE-2023-23916 Open this link in a new tabHow to fix?
Upgrade Debian:11 curl to version 7.74.0-1.3+deb11u7 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.
An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.