Information disclosure in Apple macOS
CVE-2022-32221
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.044 (91.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.044 · change: +0.001
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- hackerone.com/reports/1704017 (Exploit, Third Party Advisory, Issue Tracking)
- security.gentoo.org/glsa/202212-01 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230110-0006/ (Third Party Advisory)
- support.apple.com/kb/HT213604 (Third Party Advisory)
- support.apple.com/kb/HT213605 (Third Party Advisory)
- seclists.org/fulldisclosure/2023/Jan/20 (mailing-list, Mailing List, Third Party Advisory)
- seclists.org/fulldisclosure/2023/Jan/19 (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2023/dsa-5330 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/01/msg00028.html (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230208-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-32221?
- CVE-2022-32221 is a critical-severity vulnerability in Apple macOS, classified under Information Disclosure. CVSS score: 9.8/10. Published 2022-12-05.
- How severe is CVE-2022-32221?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-32221 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.