When sending data to an MQTT server, libcurl <= 7.73.0... · CVE-2021-22945 · GitHub Advisory Database · GitHub

When sending data to an MQTT server, libcurl <= 7.73.0...

Critical severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Mar 27, 2024

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it again.

References

Published by the National Vulnerability Database

Sep 23, 2021

Published to the GitHub Advisory Database May 24, 2022

Last updated Mar 27, 2024

Severity

Critical

9.1

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H