Allocation of Resources Without Limits or Throttling Affecting curl package, versions <7.74.0-1.3+deb11u7
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
- Snyk ID SNYK-DEBIAN11-CURL-3320498
- published 15 Feb 2023
- disclosed 23 Feb 2023
Introduced: 15 Feb 2023CVE-2023-23916 Open this link in a new tab
How to fix?
curl to version 7.74.0-1.3+deb11u7 or higher.
Note: Versions mentioned in the description apply only to the upstream
curl package and not the
curl package as distributed by
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.