CVE-2023-23916

MEDIUM
6.5
CVSS Score
Published: February 23, 2023 at 12:00 AM UTC
Updated: October 23, 2026 at 11:10 PM UTC
9 products affected across 5 vendorsDebian LinuxFedoraH700S Firmware· also runs on 4 platforms

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

7.57.0 ≤ v < 7.88.0
Vendor states this is fixed in 7.88.0 (unaffected)
All versions
netapp-h300s (same device)
All versions
netapp-h410s (same device)
All versions
netapp-h500s (same device)
All versions
netapp-h700s (same device)
8.2.0 ≤ v < 8.2.129.0.0 ≤ v < 9.0.69.1.0
Affected range stops below 8.2.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.0.6, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-770

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