CVE-2021-21341
libxstream-java - security update
Description
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is vulnerability which may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service 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.
How to fix CVE-2021-21341
To remediate CVE-2021-21341, upgrade the affected package to a fixed version below.
- —upgrade to 5.15.14 or later
- —upgrade to 1.4.15-2 or later
- —upgrade to 1.4.11.1-1+deb9u2 or later
- —upgrade to 1.4.16 or later
Is CVE-2021-21341 being exploited?
Moderate — EPSS is 27.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (4)
- from 0, < 5.15.14 | >= 5.16.0, <= 5.16.0, >= 5.16.1, <= 5.16.1
- from 0, < 1.4.15-2
- from 0, < 1.4.11.1-1+deb9u2
- from 0, < 1.4.16
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |