Allocation of Resources Without Limits or Throttling Affecting curl package, versions <7.88.0-r0
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Test your applications- Snyk ID SNYK-ALPINE320-CURL-7008738
- published 23 May 2024
- disclosed 23 Feb 2023
Introduced: 23 Feb 2023
CVE-2023-23916 Open this link in a new tabHow to fix?
Upgrade Alpine:3.20 curl to version 7.88.0-r0 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 Alpine.
See How to fix? for Alpine:3.20 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.
References
- https://hackerone.com/reports/1826048
- https://lists.debian.org/debian-lts-announce/2023/02/msg00035.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BQKE6TXYDHOTFHLTBZ5X73GTKI7II5KO/
- https://security.netapp.com/advisory/ntap-20230309-0006/
- https://www.debian.org/security/2023/dsa-5365
- https://security.gentoo.org/glsa/202310-12
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BQKE6TXYDHOTFHLTBZ5X73GTKI7II5KO/