CVE-2017-18640 (GCVE-0-2017-18640)

Vulnerability from cvelistv5 – Published: 2019-12-12 00:00 – Updated: 2024-08-05 21:28
VLAI
Summary
The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.fedoraproject.org/archives/list/pac… vendor-advisory
https://lists.apache.org/thread.html/r8b57c57cffa… mailing-list
https://lists.apache.org/thread.html/rb34d8d3269a… mailing-list
https://lists.apache.org/thread.html/r8464b6ec951… mailing-list
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https://lists.apache.org/thread.html/r6c91e52b3cc… mailing-list
https://lists.apache.org/thread.html/r72a3588d62b… mailing-list
https://lists.apache.org/thread.html/r1dfac8b6a70… mailing-list
https://lists.apache.org/thread.html/rb0e033d5ec8… mailing-list
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https://lists.apache.org/thread.html/r6d54c2da792… mailing-list
https://lists.apache.org/thread.html/r666f29a7d0e… mailing-list
https://lists.apache.org/thread.html/r154090b871c… mailing-list
https://lists.apache.org/thread.html/r28c9009a48d… mailing-list
https://lists.apache.org/thread.html/rb7b28ac741e… mailing-list
https://lists.apache.org/thread.html/re791a854001… mailing-list
https://lists.apache.org/thread.html/rce5c93bba6e… mailing-list
https://lists.apache.org/thread.html/r5510f0125ba… mailing-list
https://lists.apache.org/thread.html/r2db207a2431… mailing-list
https://lists.apache.org/thread.html/r1058e764698… mailing-list
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https://lists.apache.org/thread.html/r56805265475… mailing-list
https://lists.apache.org/thread.html/rbaa1f513d90… mailing-list
https://lists.apache.org/thread.html/reb1751562ee… mailing-list
https://lists.apache.org/thread.html/r1ffce2ed301… mailing-list
https://lists.apache.org/thread.html/rc3211c71f7e… mailing-list
https://lists.apache.org/thread.html/r55d807f31e6… mailing-list
https://lists.apache.org/thread.html/recfe569f4f2… mailing-list
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https://lists.apache.org/thread.html/r1703a402f30… mailing-list
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https://lists.apache.org/thread.html/r20350031c60… mailing-list
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https://lists.apache.org/thread.html/rb5c33d0069c… mailing-list
https://lists.apache.org/thread.html/rcb4b61dbe2e… mailing-list
https://lists.apache.org/thread.html/raebd2019b3d… mailing-list
https://lists.apache.org/thread.html/r4d7f37da1bc… mailing-list
https://lists.apache.org/thread.html/r22ac2aa053b… mailing-list
https://lists.apache.org/thread.html/r1aab47b48a7… mailing-list
https://lists.apache.org/thread.html/rcb2a7037366… mailing-list
https://lists.apache.org/thread.html/r436988d2cfe… mailing-list
https://lists.apache.org/thread.html/r7ce3de03fac… mailing-list
https://www.oracle.com/security-alerts/cpuApr2021.html
https://bitbucket.org/asomov/snakeyaml/issues/377…
https://mvnrepository.com/artifact/org.yaml/snake…
https://bitbucket.org/asomov/snakeyaml/wiki/Billi…
https://lists.apache.org/thread.html/r4c682fb8cf6…
https://lists.apache.org/thread.html/r900e020760c…
https://lists.apache.org/thread.html/r2721aba31a8… mailing-list
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https://lists.apache.org/thread.html/r182e9cf6f3f… mailing-list
https://lists.apache.org/thread.html/rdd34c047958… mailing-list
https://lists.apache.org/thread.html/r465d2553a31… mailing-list
https://bitbucket.org/snakeyaml/snakeyaml/wiki/Changes
https://bitbucket.org/snakeyaml/snakeyaml/issues/377
https://security.gentoo.org/glsa/202305-28 vendor-advisory
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          "url": "https://lists.apache.org/thread.html/r72a3588d62b2de1361dc9648f5d355385735e47f7ba49d089b0e680d%40%3Ccommon-issues.hadoop.apache.org%3E"
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          "name": "[atlas-dev] 20200907 [GitHub] [atlas] crazylab opened a new pull request #109: Upgrade snakeyaml to a version without CVE-2017-18640",
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          "url": "https://lists.apache.org/thread.html/r2a5b84fdf59042dc398497e914b5bb1aed77328320b1438144ae1953%40%3Cdev.atlas.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/r154090b871cf96d985b90864442d84eb027c72c94bc3f0a5727ba2d1%40%3Ccommon-issues.hadoop.apache.org%3E"
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        {
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          "url": "https://lists.apache.org/thread.html/r2db207a2431a5e9e95e899858ab1f5eabd9bcc790a6ca7193ae07e94%40%3Cdev.atlas.apache.org%3E"
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          "name": "[atlas-commits] 20200916 [atlas] 02/02: ATLAS-3940 : Upgrade snakeyaml to a version without CVE-2017-18640 (#110)",
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          "url": "https://lists.apache.org/thread.html/re851bbfbedd47c690b6e01942acb98ee08bd00df1a94910b905bc8cd%40%3Cdev.atlas.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/r56805265475919252ba7fc10123f15b91097f3009bae86476624ca25%40%3Ccommits.cassandra.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/rc3211c71f7e0973a1825d1988a3921288c06cd9d793eae97ecd34948%40%3Ccommits.cassandra.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/r55d807f31e64a080c54455897c20b1667ec792e5915132c7b7750533%40%3Ccommits.cassandra.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/rf95bebee6dfcc55067cebe8482bd31e6f481d9f74ba8e03f860c3ec7%40%3Ccommits.cassandra.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/r1703a402f30c8a2ee409f8c6f393e95a63f8c952cc9ee5bf9dd586dc%40%3Ccommits.cassandra.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/r191ceadb1b883357384981848dfa5235cb02a90070c553afbaf9b3d9%40%3Ccommits.cassandra.apache.org%3E"
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          "url": "https://lists.apache.org/thread.html/rcb4b61dbe2ed1c7a88781a9aff5a9e7342cc7ed026aec0418ee67596%40%3Ccommon-issues.hadoop.apache.org%3E"
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Party Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/202305-28\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.oracle.com/security-alerts/cpuApr2021.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:59:28+00:00",
      "cve": "CVE-2017-18640",
      "id": "CVE-2017-18640",
      "initial_release_date": "2017-01-01T00:00:00+00:00",
      "product_status:fixed": "5",
      "product_status:known_affected": "6",
      "product_status:known_not_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "snakeyaml: Billion laughs attack via alias feature",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-18640.json",
      "version": "3"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.