CVE-2023-23916 (GCVE-0-2023-23916)

Vulnerability from cvelistv5 – Published: 2023-02-23 00:00 – Updated: 2026-10-14 22:32
VLAI
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-12 18:24 UTC
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling (CWE-770)
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
hackerone CNA under the mitre root
CNA scorecard D 59/100 over 187 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a https://github.com/curl/curl Affected: Fixed in 7.88.0
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
guessed Create a notification for this product.
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}



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