CVE-2022-32221

high-risk
Published 2022-12-05

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.

Do I need to act?

~
1.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (11)

Affected Vendors

Debian Apple Haxx Netapp Splunk

References (22)

Mailing List http://seclists.org/fulldisclosure/2023/Jan/19
Mailing List http://seclists.org/fulldisclosure/2023/Jan/20
Mailing List http://www.openwall.com/lists/oss-security/2023/05/17/4
Exploit https://hackerone.com/reports/1704017
Mailing List https://lists.debian.org/debian-lts-announce/2023/01/msg00028.html
Third Party Advisory https://security.gentoo.org/glsa/202212-01
Third Party Advisory https://security.netapp.com/advisory/ntap-20230110-0006/
Third Party Advisory https://security.netapp.com/advisory/ntap-20230208-0002/
Third Party Advisory https://support.apple.com/kb/HT213604
Third Party Advisory https://support.apple.com/kb/HT213605
Third Party Advisory https://www.debian.org/security/2023/dsa-5330
Mailing List http://seclists.org/fulldisclosure/2023/Jan/19
Mailing List http://seclists.org/fulldisclosure/2023/Jan/20
Mailing List http://www.openwall.com/lists/oss-security/2023/05/17/4
Exploit https://hackerone.com/reports/1704017
Mailing List https://lists.debian.org/debian-lts-announce/2023/01/msg00028.html
Third Party Advisory https://security.gentoo.org/glsa/202212-01
Third Party Advisory https://security.netapp.com/advisory/ntap-20230110-0006/
Third Party Advisory https://security.netapp.com/advisory/ntap-20230208-0002/
Third Party Advisory https://support.apple.com/kb/HT213604
and 2 more references
52
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 4/34 · Minimal
Exposure 16/34 · Moderate