CVE-2022-32206

Name: CVE-2022-32206
Creator: NVD / NIST
Published: 2022-07-07T13:15:08.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 31.97%

Last modified Jun 17, 2026

CVE-2022-32206 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 31.97% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

31.97%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Haxx	Curl	< 7.84.0
Fedoraproject	Fedora	35
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Netapp	Clustered Data Ontap	All versions
Netapp	Element Software	All versions
Netapp	Hci Management Node	All versions
Netapp	Solidfire	All versions
Netapp	Bootstrap Os	All versions
Netapp	H300s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H700s Firmware	All versions
Netapp	H410s Firmware	All versions
Siemens	Scalance Sc622-2c Firmware	< 3.0
Siemens	Scalance Sc626-2c Firmware	< 3.0
Siemens	Scalance Sc632-2c Firmware	< 3.0
Siemens	Scalance Sc636-2c Firmware	< 3.0
Siemens	Scalance Sc642-2c Firmware	< 3.0
Siemens	Scalance Sc646-2c Firmware	< 3.0
Splunk	Universal Forwarder	>= 8.2.0, < 8.2.12
Splunk	Universal Forwarder	>= 9.0.0, < 9.0.6
Splunk	Universal Forwarder	9.1.0

References

http://seclists.org/fulldisclosure/2022/Oct/28Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Oct/41Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/02/15/3Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdfPatch, Third Party Advisory
https://hackerone.com/reports/1570651Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20220915-0003/Third Party Advisory
https://support.apple.com/kb/HT213488Third Party Advisory
https://www.debian.org/security/2022/dsa-5197Third Party Advisory
http://seclists.org/fulldisclosure/2022/Oct/28Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2022/Oct/41Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/02/15/3Mailing List, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-333517.pdfPatch, Third Party Advisory
https://hackerone.com/reports/1570651Exploit, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEV6BR4MTI3CEWK2YU2HQZUW5FAS3FEY/Mailing List, Third Party Advisory
https://security.gentoo.org/glsa/202212-01Third Party Advisory
https://security.netapp.com/advisory/ntap-20220915-0003/Third Party Advisory
https://support.apple.com/kb/HT213488Third Party Advisory
https://www.debian.org/security/2022/dsa-5197Third Party Advisory

Timeline

Published: Jul 7, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-32206?

How severe is CVE-2022-32206?

CVE-2022-32206 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 31.97% probability of exploitation in the next 30 days.

How do I fix CVE-2022-32206?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-32206?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST