CVE-2022-32221

Affected: https://github.com/curl/curl

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.

USN-5702-1 — curl vulnerabilities

Affected: Ubuntu:18.04:LTS: curl, Ubuntu:20.04:LTS: curl, Ubuntu:22.04:LTS: curl

Robby Simpson discovered that curl incorrectly handled certain POST operations after PUT operations. This issue could cause applications using curl to send the wrong data, perform incorrect memory operations, or crash. (CVE-2022-32221)

Hiroki Kurosawa discovered that curl incorrectly handled parsing .netrc files. If an attacker were able to provide a specially crafted .netrc file, this issue could cause curl to crash, resulting in a denial of service. This issue only affected Ubuntu 22.10. (CVE-2022-35260)

It was discovered that curl incorrectly handled certain HTTP proxy return codes. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2022-42915)

Hiroki Kurosawa discovered that curl incorrectly handled HSTS support when certain hostnames included IDN characters. A remote attacker could possibly use this issue to cause curl to use unencrypted connections. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2022-42916)

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CVE-2022-32221

USN-5702-1 — curl vulnerabilities