CVE-2022-32206

curl: HTTP compression denial of service

Published Jul 7, 2022 CVSS 3.1 · 6.5 Medium EPSS 36.3% KEV · Not listed
Description
curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms. The number of acceptable "links" in this "decompression chain" was unbounded, allowing a malicious server to insert a virtually unlimited number of compression steps.The use of such a decompression chain could result in a "malloc bomb", makingcurl end up spending enormous amounts of allocated heap memory, or trying toand returning out of memory errors.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3085-1 curl security update
Debian DSA Debian DSA DSA-5197-1 curl security update
Ubuntu USN Ubuntu USN USN-5495-1 curl vulnerabilities
Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Oct 14, 2026, 4:38 PM
Reserved
Jun 1, 2022, 12:00 AM
Status
Modified
Published
Jul 7, 2022, 1:15 PM
Modified
Oct 14, 2026, 5:17 PM
Severity
Moderate
Public date
Jun 27, 2022, 12:00 AM