CVE-2021-29505highCWE-502 CWE-94

XStream is vulnerable to a Remote Command Execution attack

58Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 7.5epss 77%

exploitation probability

77%top 1% of all CVEs

observed exploitation

nono source reports it

What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗

Affected

10 products

Red Hat BPM Suite 6 · Red Hat Integration Camel Quarkus 1 · Red Hat JBoss A-MQ 6 · Red Hat JBoss BRMS 5 · Red Hat JBoss BRMS 6 · and others 5

workaround: Depending on the version of XStream used there are various usage patterns that mitigate this flaw, though we would strongly recommend using the allow list approach if at all possible as there are likely more class combinations the deny list…

Fixed

10 products (18 components)

Red Hat Enterprise Linux Client Optional (v. 7) · Red Hat Enterprise Linux ComputeNode Optional (v. 7) · Red Hat Enterprise Linux Server Optional (v. 7) · Red Hat Enterprise Linux Workstation Optional (v. 7) · RHDM 7.12.0 · and others 5

fix ↗

Not affected

2 products (4 components) — because the vulnerable code is not present in the product

Red Hat OpenShift Container Platform 3.11 · Red Hat OpenShift Container Platform 4

XStream is software for serializing Java objects to XML and back again. A vulnerability in XStream versions prior to 1.4.17 may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types is affected. The vulnerability is patched in version 1.4.17.

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

Affected products

x-stream · xstream

References