CVE-2022-24823 Information

Description

Netty is an open-source asynchronous event-driven network application framework. The package io.netty:netty-codec-http prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty’s multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally this vulnerability impacts code running on Unix-like systems and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround specify one’s own java.io.tmpdir when starting the JVM or use DefaultHttpDataFactory.setBaseDir(…) to set the directory to something that is only readable by the current user.

CVSS Vector

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

Reference

https://github.com/netty/netty/commit/185f8b2756a36aaa4f973f1a2a025e7d981823f1 https://github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2 https://github.com/netty/netty/security/advisories/GHSA-269q-hmxg-m83q

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5