PT-2022-4626 · Xstream+3 · Xstream+3

Published 2022-02-01 · Updated 2025-05-27 · CVE-2021-43859

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions XStream versions prior to 1.4.19

Description The issue is related to an uncontrolled resource consumption in the XStream Java library, which can be exploited by a remote attacker to cause a denial of service. This can be achieved by manipulating the processed input stream, potentially allocating 100% CPU time on the target system. The library's ability to serialize objects to XML and back again is affected.

Recommendations For versions prior to 1.4.19, upgrade to version 1.4.19 or later as soon as possible. As a temporary workaround for users unable to upgrade, set the NO REFERENCE mode to prevent recursion.

Exploit

Fix

DoS

Deserialization of Untrusted Data

Resource Exhaustion

Weakness Enumeration

CWE-502

CWE-400

Related Identifiers

ALT-PU-2022-7660

BDU:2022-05508

BIT-JENKINS-2021-43859

CVE-2021-43859

DLA-2924-1

DLA-4001-1

GHSA-RMR5-CPV2-VGJF

OESA-2022-1512

OESA-2022-2066

OPENSUSE-SU-2022:0817-1

OPENSUSE-SU-2022_0817-1

OPENSUSE-SU-2024:11809-1

RHSA-2022:1420

SUSE-SU-2022:0817-1

SUSE-SU-2022_0817-1

Affected Products

Alt Linux

Jenkins

Suse

Xstream

References · 52

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/vmware_nsxmgr_xstream_rce_cve_2021_39144.rb · Exploit
• 🔥 https://github.com/x-stream/xstream/security/advisories/GHSA-rmr5-cpv2-vgjf · Exploit
• 🔥 https://github.com/jas502n/CVE-2020-26259 · Exploit
• 🔥 https://github.com/MyBlackManba/CVE-2021-29505 · Exploit
• 🔥 https://github.com/Al1ex/CVE-2020-26259 · Exploit
• 🔥❌ https://github.com/b3wT/CVE-2021-39144-XSTREAM-RCE · Exploit, Deleted
• 🔥 https://x-stream.github.io/CVE-2021-43859.html · Exploit
• https://github.com/x-stream/xstream/commit/e8e88621ba1c85ac3b8620337dd672e0c0c3a846 · Patch
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VACQYG356OHUTD5WQGAQ4L2TTFTAV3SJ · Vendor Advisory
• https://osv.dev/vulnerability/BIT-jenkins-2021-43859 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-43859 · Security Note
• https://osv.dev/vulnerability/OESA-2022-2066 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43859 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/XODFRE2ZL64FICBJDOPWOLPTSSAI4U7X · Vendor Advisory