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.
History

Wed, 12 Mar 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published: 2023-02-23T00:00:00.000Z

Updated: 2025-03-12T18:25:23.845Z

Reserved: 2023-01-19T00:00:00.000Z

Link: CVE-2023-23916

cve-icon Vulnrichment

Updated: 2024-08-02T10:42:26.847Z

cve-icon NVD

Status : Modified

Published: 2023-02-23T20:15:13.777

Modified: 2025-03-12T19:15:36.367

Link: CVE-2023-23916

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-02-15T00:00:00Z

Links: CVE-2023-23916 - Bugzilla