Most recent entries from all

bdu:2022-00310

certfr-2021-avi-407 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Certaines d'entre elles permettent à un…

certfr-2021-avi-407

EUVD-2026-22135

fkie_cve-2021-21290

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. 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. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something that is only readable by the current user.

GHSA-5mcr-gq6c-3hq2 — Local Information Disclosure Vulnerability in Netty on Unix-Like systems

Affected: Maven: io.netty:netty-codec-http, Maven: org.jboss.netty:netty, Maven: io.netty:netty

### Impact

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.

The CVSSv3.1 score of this vulnerability is calculated to be a [6.2/10](https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N&version=3.1)

### Vulnerability Details

On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems.

The method `File.createTempFile` on unix-like systems creates a random file, but, by default will create this file with the permissions `-rw-r--r--`. Thus, if sensitive information is written to this file, other local users can read this information.

This is the case in netty's `AbstractDiskHttpData` is vulnerable.

https://github.com/netty/netty/blob/e5951d46fc89db507ba7d2968d2ede26378f0b04/codec-http/src/main/java/io/netty/handler/codec/http/multipart/AbstractDiskHttpData.java#L80-L101

`AbstractDiskHttpData` is used as a part of the `DefaultHttpDataFactory` class which is used by `HttpPostRequestDecoder` / `HttpPostMultiPartRequestDecoder`.

You may be affected by this vulnerability your project contains the following code patterns:

```java channelPipeline.addLast(new HttpPostRequestDecoder(...)); ```

```java…

gsd-2021-21290

OESA-2021-1143 — netty security update

Affected: openEuler:20.03-LTS-SP1: netty

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Security Fix(es): Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. 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. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something…

openSUSE-SU-2024:11085-1 — netty-4.1.60-1.4 on GA media

netty-4.1.60-1.4 on GA media

RHSA-2021:0943 — Red Hat Security Advisory: Red Hat build of Eclipse Vert.x 4.0.3 security update

netty: Information disclosure via the local system temporary directory netty: possible request smuggling in HTTP/2 due missing validation

SUSE-SU-2022:1271-1 — Security update for netty

Security update for netty

UBUNTU-CVE-2021-21290

Affected: Ubuntu:Pro:14.04:LTS: netty, Ubuntu:Pro:16.04:LTS: netty, Ubuntu:Pro:18.04:LTS: netty, Ubuntu:Pro:20.04:LTS: netty, Ubuntu:22.04:LTS: netty

WID-SEC-W-2022-0567 — Red Hat OpenShift: Mehrere Schwachstellen

Ein entfernter, anonymer oder lokaler Angreifer kann mehrere Schwachstellen in Red Hat OpenShift ausnutzen, um Sicherheitsvorkehrungen zu umgehen oder Informationen offenzulegen.