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CVE-2022-32221

9.8 · CRITICAL

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same h…

Published Dec 5, 2022CWE-200EPSS 5.09%

Overview

CVE-2022-32221 is a critical-severity vulnerability. It was published on December 5, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

When doing HTTP(S) transfers, libcurl might erroneously use the read callback (`CURLOPT_READFUNCTION`) to ask for data to send, even when the `CURLOPT_POSTFIELDS` option has been set, if the same handle previously was used to issue a `PUT` request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent `POST` request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refseclists.org/fulldisclosure/2023/Jan/19Refseclists.org/fulldisclosure/2023/Jan/20Refwww.openwall.com/lists/oss-security/2023/05/17/4Refhackerone.com/reports/1704017Reflists.debian.org/debian-lts-announce/2023/01/msg00028.htmlRefsecurity.gentoo.org/glsa/202212-01Refsecurity.netapp.com/advisory/ntap-20230110-0006/Refsecurity.netapp.com/advisory/ntap-20230208-0002/Refsupport.apple.com/kb/HT213604Refsupport.apple.com/kb/HT213605

How CyberStrike helps

Frequently asked questions

What is CVE-2022-32221?

CVE-2022-32221 is a critical-severity vulnerability. It was published on December 5, 2022 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2022-32221?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-32221?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-32221?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-32221 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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