Vulnerability-Lookup

SUSE-SU-2022:0817-1

Vulnerability from csaf_suse - Published: 2022-03-14 09:22 - Updated: 2026-09-20 14:18

Summary

Security update for xstream

Severity

Moderate

Notes

Title of the patch: Security update for xstream

Description of the patch: This update for xstream fixes the following issues: - CVE-2021-43859: Fixed a denial of service when unmarshalling highly recursive collections or maps (bsc#1195458).

Patchnames: SUSE-2022-817,SUSE-SLE-Module-Development-Tools-15-SP3-2022-817,SUSE-SLE-Module-SUSE-Manager-Server-4.1-2022-817,SUSE-SLE-Module-SUSE-Manager-Server-4.2-2022-817,SUSE-SLE-Product-RT-15-SP2-2022-817

CVE-2021-43859

5.5 (Medium)


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

Affected products

Recommended 12 products

Product	Version	Remediation
Unresolved product id: SUSE Enterprise Storage 7.1:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Desktop 15 SP3:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Development Tools 15 SP3:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Real Time 15 SP2:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP3:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Manager Proxy 4.2:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Manager Retail Branch Server 4.2:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Manager Server 4.2:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Manager Server Module 4.1:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix
Unresolved product id: SUSE Manager Server Module 4.2:xstream-0:1.4.19-3.18.2.noarch	—	Vendor Fix

Threats

Impact moderate

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1195458	self
https://www.suse.com/security/cve/CVE-2021-43859/	self
https://www.suse.com/security/cve/CVE-2021-43859	external
https://bugzilla.suse.com/1195458	external

JSON

To clipboard

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      "text": "moderate"
    },
    "category": "csaf_security_advisory",
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    "distribution": {
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        "title": "Description of the patch"
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        "title": "Patchnames"
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        "category": "legal_disclaimer",
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-43859",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2021-43859"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 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. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. See GHSA-rmr5-cpv2-vgjf for further details on a workaround if an upgrade is not possible.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Enterprise Desktop 15 SP3:xstream-0:1.4.19-3.18.2.noarch",
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          "SUSE Manager Server Module 4.2:xstream-0:1.4.19-3.18.2.noarch"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2021-43859",
          "url": "https://www.suse.com/security/cve/CVE-2021-43859"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1195458 for CVE-2021-43859",
          "url": "https://bugzilla.suse.com/1195458"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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            "SUSE Manager Server 4.2:xstream-0:1.4.19-3.18.2.noarch",
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            "SUSE Manager Server Module 4.2:xstream-0:1.4.19-3.18.2.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Enterprise Storage 7.1:xstream-0:1.4.19-3.18.2.noarch",
            "SUSE Linux Enterprise Desktop 15 SP3:xstream-0:1.4.19-3.18.2.noarch",
            "SUSE Linux Enterprise High Performance Computing 15 SP3:xstream-0:1.4.19-3.18.2.noarch",
            "SUSE Linux Enterprise Module for Development Tools 15 SP3:xstream-0:1.4.19-3.18.2.noarch",
            "SUSE Linux Enterprise Real Time 15 SP2:xstream-0:1.4.19-3.18.2.noarch",
            "SUSE Linux Enterprise Server 15 SP3:xstream-0:1.4.19-3.18.2.noarch",
            "SUSE Linux Enterprise Server for SAP Applications 15 SP3:xstream-0:1.4.19-3.18.2.noarch",
            "SUSE Manager Proxy 4.2:xstream-0:1.4.19-3.18.2.noarch",
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            "SUSE Manager Server Module 4.2:xstream-0:1.4.19-3.18.2.noarch"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2022-03-14T09:22:31Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2021-43859"
    }
  ]
}

CVE-2021-43859 (GCVE-0-2021-43859)

Vulnerability from cvelistv5 – Published: 2022-02-01 12:08 – Updated: 2025-11-03 21:45

Title

Denial of Service by injecting highly recursive collections or maps in XStream

Summary

XStream is an open source java library to serialize objects to XML and back again. Versions prior to 1.4.19 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. XStream 1.4.19 monitors and accumulates the time it takes to add elements to collections and throws an exception if a set threshold is exceeded. Users are advised to upgrade as soon as possible. Users unable to upgrade may set the NO_REFERENCE mode to prevent recursion. See GHSA-rmr5-cpv2-vgjf for further details on a workaround if an upgrade is not possible.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:42 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root Scorecard

References

10 references

URL	Tags
https://github.com/x-stream/xstream/security/advi…	x_refsource_CONFIRM
https://github.com/x-stream/xstream/commit/e8e886…	x_refsource_MISC
https://x-stream.github.io/CVE-2021-43859.html	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2022/02/09/1	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST
https://www.oracle.com/security-alerts/cpuapr2022.html	x_refsource_MISC
https://www.oracle.com/security-alerts/cpujul2022.html	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
x-stream	xstream	Affected: < 1.4.19

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

SUSE-SU-2022:0817-1

CVE-2021-43859 (GCVE-0-2021-43859)

Tags

Sightings

Nomenclature

Related by attack behaviour