CVE-2021-21344
Publication date 23 March 2021
Last updated 25 August 2025
Ubuntu priority
Description
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. 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, you will have to use at least version 1.4.16.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libxstream-java | ||
| 24.04 LTS noble |
Fixed 1.4.15-2
|
|
| 22.04 LTS jammy |
Fixed 1.4.15-2
|
|
| 20.04 LTS focal |
Fixed 1.4.11.1-1ubuntu0.2
|
|
| 18.04 LTS bionic |
Fixed 1.4.11.1-1~18.04.2
|
|
| 16.04 LTS xenial |
Fixed 1.4.8-1ubuntu0.1+esm3
|
|
| 14.04 LTS trusty |
Fixed 1.4.7-1ubuntu0.1+esm2
|
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CVSS version: CVSS v3.0
Base score
9.8 · Critical
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-4943-1
- XStream vulnerabilities
- 11 May 2021
- USN-6978-1
- XStream vulnerabilities
- 22 August 2024