CVE-2022-32221

Public Exploit

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.

Categories

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.76% Top 30%
Vendor Advisory gentoo.org Vendor Advisory debian.org
Affected: n/a https://github.com/curl/curl
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2022-32221?
CVE-2022-32221 has been scored as a critical severity vulnerability.
How to fix CVE-2022-32221?
To fix CVE-2022-32221, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-32221 being actively exploited in the wild?
It is possible that CVE-2022-32221 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-32221?
CVE-2022-32221 affects n/a https://github.com/curl/curl.
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