SUSE-SU-2021:1979-1

Vulnerability from csaf_suse - Published: 2021-06-15 11:06 - Updated: 2026-09-20 13:59
Summary
Security update for snakeyaml
Severity
Important
Notes
Title of the patch: Security update for snakeyaml
Description of the patch: This update for snakeyaml fixes the following issues: - Upgrade to 1.28 - CVE-2017-18640: The Alias feature allows entity expansion during a load operation (bsc#1159488, bsc#1186088)
Patchnames: SUSE-2021-1979,SUSE-SLE-Module-SUSE-Manager-Server-4.1-2021-1979
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2017-18640
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Manager Server Module 4.1:snakeyaml-0:1.28-12.3.1.noarch —
Vendor Fix
Threats
Impact important
References
To clipboard 

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      "text": "important"
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    "category": "csaf_security_advisory",
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    "distribution": {
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        "text": "Security update for snakeyaml",
        "title": "Title of the patch"
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      {
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        "text": "This update for snakeyaml fixes the following issues:\n\n- Upgrade to 1.28\n- CVE-2017-18640: The Alias feature allows entity expansion during a load operation (bsc#1159488, bsc#1186088)\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2021-1979,SUSE-SLE-Module-SUSE-Manager-Server-4.1-2021-1979",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
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    },
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        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
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        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_1979-1.json"
      },
      {
        "category": "self",
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        "url": "https://www.suse.com/support/update/announcement/2021/suse-su-20211979-1/"
      },
      {
        "category": "self",
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        "url": "https://lists.suse.com/pipermail/sle-security-updates/2021-June/009016.html"
      },
      {
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        "url": "https://bugzilla.suse.com/1159488"
      },
      {
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        "summary": "SUSE Bug 1186088",
        "url": "https://bugzilla.suse.com/1186088"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2017-18640 page",
        "url": "https://www.suse.com/security/cve/CVE-2017-18640/"
      }
    ],
    "title": "Security update for snakeyaml",
    "tracking": {
      "current_release_date": "2026-09-20T13:59:14Z",
      "generator": {
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      "id": "SUSE-SU-2021:1979-1",
      "initial_release_date": "2021-06-15T11:06:54Z",
      "revision_history": [
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          "number": "1",
          "summary": "Current version"
        },
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          "date": "2026-09-20T13:59:14Z",
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          "summary": "unknown changes"
        }
      ],
      "status": "final",
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    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "snakeyaml-0:1.28-12.3.1.noarch",
                "product": {
                  "name": "snakeyaml-0:1.28-12.3.1.noarch",
                  "product_id": "snakeyaml-0:1.28-12.3.1.noarch",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:snakeyaml_project:snakeyaml:1.28:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/snakeyaml@1.28-12.3.1?arch=noarch\u0026upstream=snakeyaml-0:1.28-12.3.1.src.rpm"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "snakeyaml-javadoc-0:1.28-12.3.1.noarch",
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          },
          {
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          "product_id": "SUSE Manager Server Module 4.1:snakeyaml-0:1.28-12.3.1.noarch"
        },
        "product_reference": "snakeyaml-0:1.28-12.3.1.noarch",
        "relates_to_product_reference": "SUSE Manager Server Module 4.1"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2017-18640",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-18640"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Manager Server Module 4.1:snakeyaml-0:1.28-12.3.1.noarch"
        ]
      },
      "references": [
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          "category": "external",
          "summary": "CVE-2017-18640",
          "url": "https://www.suse.com/security/cve/CVE-2017-18640"
        },
        {
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          "summary": "SUSE Bug 1159488 for CVE-2017-18640",
          "url": "https://bugzilla.suse.com/1159488"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1186088 for CVE-2017-18640",
          "url": "https://bugzilla.suse.com/1186088"
        }
      ],
      "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",
          "product_ids": [
            "SUSE Manager Server Module 4.1:snakeyaml-0:1.28-12.3.1.noarch"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Manager Server Module 4.1:snakeyaml-0:1.28-12.3.1.noarch"
          ]
        }
      ],
      "threats": [
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          "category": "impact",
          "date": "2021-06-15T11:06:54Z",
          "details": "important"
        }
      ],
      "title": "CVE-2017-18640"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


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