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CVE-2022-32221

Publication date 26 October 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
curl 22.10 kinetic
Fixed 7.85.0-1ubuntu0.1
22.04 LTS jammy
Fixed 7.81.0-1ubuntu1.6
20.04 LTS focal
Fixed 7.68.0-1ubuntu2.14
18.04 LTS bionic
Fixed 7.58.0-2ubuntu3.21
16.04 LTS xenial
14.04 LTS trusty

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Notes

alexmurray

affects libcurl 7.7 to and including 7.85.0

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
curl

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references