Deserialization of Untrusted Data Affecting xstream package, versions <0:1.3.1-12.el7_9


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
97.38% (100th percentile)

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  • Snyk IDSNYK-CENTOS7-XSTREAM-2179475
  • published26 Jul 2021
  • disclosed16 Nov 2020

Introduced: 16 Nov 2020

CVE-2020-26217  (opens in a new tab)
CWE-502  (opens in a new tab)

How to fix?

Upgrade Centos:7 xstream to version 0:1.3.1-12.el7_9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xstream package and not the xstream package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.

References

CVSS Scores

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