CVE-2022-32221

Publication date 26 October 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

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

Show unmaintained releases

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	Fixed 7.47.0-1ubuntu2.19+esm6 Ubuntu Pro
	14.04 LTS trusty	Fixed 7.35.0-1ubuntu2.20+esm13 Ubuntu Pro

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro

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	Upstream: a64e3e5

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)

USN-5702-1
curl vulnerabilities
26 October 2022

USN-5702-2
curl vulnerability
26 October 2022

USN-5823-1
MySQL vulnerabilities
24 January 2023