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Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package libcurl  (opens in a new tab)

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EPSS
1.74% (78th percentile)

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  • Snyk IDSNYK-RHEL9-LIBCURL-12327399
  • published1 Sept 2025
  • disclosed15 Feb 2023
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Introduced: 15 Feb 2023

CVE-2023-23916  (opens in a new tab)
CWE-770  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl package and not the libcurl package as distributed by RHEL.

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.