CVE & CISA-KEV Catalog

CVE-2022-32206

MEDIUMEPSS 98th pctl
6.5
CVSS v3
NVD

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.

How to fix

Remediation Available
curlDebian
Fixed in:7.74.0-1.3+deb11u2CVE-2022-32206
Fixed in:7.84.0-1CVE-2022-32206
Fixed in:7.84.0-1CVE-2022-32206
Fixed in:7.84.0-1CVE-2022-32206
curlRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curlRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curl-debuginfoRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curl-debuginfoRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curl-debugsourceRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curl-debugsourceRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curl-minimal-debuginfoRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curl-minimal-debuginfoRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurlRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurlRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-debuginfoRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-debuginfoRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-develRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-develRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-minimalRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-minimalRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-minimal-debuginfoRocky
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
libcurl-minimal-debuginfoRed Hat / RHEL
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
Fixed in:0:7.61.1-18.el8_4.3RHSA-2023:3460
curlUbuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
libcurl3-gnutlsUbuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
libcurl3-nssUbuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
libcurl4Ubuntu
Fixed in:7.58.0-2ubuntu3.19USN-5495-1
Fixed in:7.68.0-1ubuntu2.12USN-5495-1
Fixed in:7.81.0-1ubuntu1.3USN-5495-1
UniversalForwarderWindows application
Affected:9.0.0 9.0.6Fixed in:9.0.6Splunk, Inc.
Affected:8.2.0 8.2.12Fixed in:8.2.12Splunk, Inc.

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Intelligence

32.16%probability of exploitation in 30 days
98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Related Vulnerabilities

Other CWE-770 (Allocation of Resources Without Limits or Throttling) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-50387High7.5100%-Fix
CVE-2019-11478Medium5.395%-Fix
CVE-2019-11479High7.592%-Fix
CVE-2024-27316High7.591%-Fix
CVE-2022-30522High7.590%-Fix
CVE-2019-9515High7.587%-Fix

Common questions

How do I fix CVE-2022-32206?

Published advisories record a fix for 24 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-32206 being actively exploited?

Not that we know of. CVE-2022-32206 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 32.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 98% of all scored CVEs.

How severe is CVE-2022-32206?

CVE-2022-32206 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-32206 affect?

Published advisories record a fix for curl (Debian), curl (Red Hat / RHEL), curl (Rocky), curl-debuginfo (Rocky), and 20 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2022-32206
CVE-2022-32206 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-05-05.