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CVE-2021-39150

Publication date 23 August 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.5 · High

Score breakdown

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream with a Java runtime version 14 to 8. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the [Security Framework](https://x-stream.github.io/security.html#framework), you will have to use at least version 1.4.18.

Read the notes from the security team

Status

Package Ubuntu Release Status
libxstream-java 23.04 lunar
Not affected
22.10 kinetic
Not affected
22.04 LTS jammy
Not affected
21.10 impish Ignored end of life
21.04 hirsute Ignored end of life
20.04 LTS focal
Fixed 1.4.11.1-1ubuntu0.3
18.04 LTS bionic
Fixed 1.4.11.1-1+deb10u4build0.18.04.1
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

sahnaseredini

for `trusty` and `xenial`, the code is not present and the available pocs cannot be exploited

Severity score breakdown

Parameter Value
Base score 8.5 · High
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H