Vulnerability-Lookup

OPENSUSE-SU-2026:12368-1

Vulnerability from csaf_opensuse - Published: 2026-10-30 00:00 - Updated: 2026-10-31 17:18

Summary

perl-YAML-1.321.0-2.1 on GA media

Severity

Moderate

Notes

Title of the patch: perl-YAML-1.321.0-2.1 on GA media

Description of the patch: These are all security issues fixed in the perl-YAML-1.321.0-2.1 package on the GA media of openSUSE Tumbleweed.

Patchnames: openSUSE-Tumbleweed-2026-12368

CVE-2017-20285

7.1 (High)


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

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: openSUSE Tumbleweed:perl-YAML-0:1.321.0-2.1.aarch64	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:perl-YAML-0:1.321.0-2.1.ppc64le	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:perl-YAML-0:1.321.0-2.1.s390x	—	Vendor Fix
Unresolved product id: openSUSE Tumbleweed:perl-YAML-0:1.321.0-2.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2019-25777

7.8 (High)


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

Affected products

Recommended 4 products, the same list as for CVE-2017-20285

Threats

Impact important

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://www.suse.com/security/cve/CVE-2017-20285/	self
https://www.suse.com/security/cve/CVE-2019-25777/	self
https://www.suse.com/security/cve/CVE-2017-20285	external
https://bugzilla.suse.com/1284169	external
https://www.suse.com/security/cve/CVE-2019-25777	external
https://bugzilla.suse.com/1284168	external

JSON

To clipboard

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      ],
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          "text": "YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes.\n\nA perl/hash:Class tag blesses a hash into the class it names. The document supplies the object\u0027s fields, and Perl calls DESTROY when it goes out of scope.\n\nWhat DESTROY does depends on the classes the process has loaded. With File::Temp::Dir from core Perl, it can delete a directory tree the document names.",
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  ]
}

CVE-2017-20285 (GCVE-0-2017-20285)

Vulnerability from cvelistv5 – Published: 2026-10-05 06:49 – Updated: 2026-10-06 17:02

Title

YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes

Summary

YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes. A perl/hash:Class tag blesses a hash into the class it names. The document supplies the object's fields, and Perl calls DESTROY when it goes out of scope. What DESTROY does depends on the classes the process has loaded. With File::Temp::Dir from core Perl, it can delete a directory tree the document names.

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 17:02 UTC

CWE

CWE-502 - Deserialization of Untrusted Data
CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 62/100 over 346 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/ingydotnet/yaml-pm/issues/176	issue-tracking
https://github.com/ingydotnet/yaml-pm/commit/4713…	patch
https://github.com/ingydotnet/yaml-pm/commit/7736…	patch
https://metacpan.org/release/TINITA/YAML-1.30/changes	release-notes
http://www.openwall.com/lists/oss-security/2026/10/05/8

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 1.30 (custom)

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2026-10-05T18:10:18.203Z",
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        "metrics": [
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              "availabilityImpact": "NONE",
              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
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                    "Technical Impact": "total"
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                "version": "2.0.3"
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        "title": "CISA ADP Vulnrichment"
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        {
          "collectionURL": "https://cpan.org/modules",
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            }
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            {
              "lessThan": "1.30",
              "status": "affected",
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              "versionType": "custom"
            }
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          "lang": "en",
          "value": "YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes.\n\nA perl/hash:Class tag blesses a hash into the class it names. The document supplies the object\u0027s fields, and Perl calls DESTROY when it goes out of scope.\n\nWhat DESTROY does depends on the classes the process has loaded. With File::Temp::Dir from core Perl, it can delete a directory tree the document names."
        }
      ],
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            }
          ]
        },
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            }
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          "lang": "en",
          "time": "2017-05-10T00:00:00.000Z",
          "value": "Issue reported."
        },
        {
          "lang": "en",
          "time": "2018-05-11T00:00:00.000Z",
          "value": "Version 1.25 released with the $YAML::LoadBlessed option."
        },
        {
          "lang": "en",
          "time": "2020-01-27T00:00:00.000Z",
          "value": "Version 1.30 released with the option defaulting to off."
        },
        {
          "lang": "en",
          "time": "2022-06-27T00:00:00.000Z",
          "value": "Issue added as CPANSA-YAML-2017-01 in the CPAN::Audit database."
        },
        {
          "lang": "en",
          "time": "2026-09-21T00:00:00.000Z",
          "value": "CVE number reserved."
        }
      ],
      "title": "YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes",
      "workarounds": [
        {
          "lang": "en",
          "value": "For deployments that cannot upgrade to YAML 1.30, set $YAML::LoadBlessed = 0 before loading untrusted input. The option exists from YAML 1.25."
        }
      ],
      "x_generator": {
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    }
  },
  "cveMetadata": {
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    "assignerShortName": "CPANSec",
    "cveId": "CVE-2017-20285",
    "datePublished": "2026-10-05T06:49:17.583Z",
    "dateReserved": "2026-09-21T21:18:28.499Z",
    "dateUpdated": "2026-10-06T17:02:58.695Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2019-25777 (GCVE-0-2019-25777)

Vulnerability from cvelistv5 – Published: 2026-10-05 06:50 – Updated: 2026-10-06 16:58

Title

YAML versions before 1.27_001 for Perl allow a loaded perl/glob document to replace any package variable, which can lead to arbitrary code execution

Summary

YAML versions before 1.27_001 for Perl allow a loaded perl/glob document to replace any package variable, which can lead to arbitrary code execution. A perl/glob document names a package and a symbol, and supplies the value assigned to it. Nothing restricts the name, so the target can be @INC or YAML's own load options. A perl/glob document that sets $YAML::LoadCode or $YAML::UseCode turns on code loading, which is off by default, for every later Load() in the process. A perl/code document is then passed to a string eval, so an attacker who supplies two documents to separate Load() calls in one process can execute arbitrary Perl code.

Severity

7.3 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 16:58 UTC

CWE

CWE-914 - Improper Control of Dynamically-Identified Variables
CWE-502 - Deserialization of Untrusted Data

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 62/100 over 346 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/ingydotnet/yaml-pm/issues/212	issue-tracking
https://github.com/ingydotnet/yaml-pm/commit/bace…	patch
https://metacpan.org/release/TINITA/YAML-1.28/changes	release-notes
http://www.openwall.com/lists/oss-security/2026/10/05/7

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 1.27_001 (custom)

Show details on NVD website

JSON

To clipboard

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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-10-05T18:10:19.164Z",
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          {
            "url": "http://www.openwall.com/lists/oss-security/2026/10/05/7"
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        ],
        "title": "CVE Program Container"
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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 7.3,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
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              "content": {
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                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-06T16:58:07.558999Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2026-10-06T16:58:19.261Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
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          "packageName": "YAML",
          "packageURL": "pkg:cpan/YAML",
          "programFiles": [
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            }
          ],
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      ],
      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
              "type": "CWE"
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        {
          "descriptions": [
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          "tags": [
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          "url": "https://github.com/ingydotnet/yaml-pm/issues/212"
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          "tags": [
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          "url": "https://metacpan.org/release/TINITA/YAML-1.28/changes"
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      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to YAML 1.28 or later."
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      ],
      "source": {
        "discovery": "UNKNOWN"
      },
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          "time": "2019-04-27T00:00:00.000Z",
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          "time": "2019-04-27T00:00:00.000Z",
          "value": "Version 1.27_001 released with fix."
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          "time": "2019-04-28T00:00:00.000Z",
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          "time": "2026-09-21T00:00:00.000Z",
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      ],
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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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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.
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OPENSUSE-SU-2026:12368-1

CVE-2017-20285 (GCVE-0-2017-20285)

CVE-2019-25777 (GCVE-0-2019-25777)

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