CVE-2023-23916

MEDIUM

MEDIUM Priority: 0.11 BB Relevance: 63/100

Published: 2023-02-23 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth

CVSS Vector Breakdown

AV: Network

AC: Low

PR: None

UI: Required

S: Unchanged

C: None

I: None

A: High

Description

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.

Weakness Classification (1)

CWE-770

Affected Software (12)

Vendor	Product	Version
debian	debian_linux	10.0
debian	debian_linux	11.0
fedoraproject	fedora	36
haxx	curl	7.57.0 – 7.88.0
netapp	clustered_data_ontap	-
netapp	h300s_firmware	-
netapp	h410s_firmware	-
netapp	h500s_firmware	-
netapp	h700s_firmware	-
splunk	universal_forwarder	8.2.0 – 8.2.12
splunk	universal_forwarder	9.0.0 – 9.0.6
splunk	universal_forwarder	9.1.0