CVE-2019-17543 (GCVE-0-2019-17543)

Vulnerability from cvelistv5 – Published: 2019-10-14 01:09 – Updated: 2024-08-05 01:40
VLAI
Summary
LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applications that call LZ4_compress_fast with a large input. (This issue can also lead to data corruption.) NOTE: the vendor states "only a few specific / uncommon usages of the API are at risk."
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • n/a
Assigner
References
Show details on NVD website
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      "lastModified": "2024-11-21T04:32:29.470",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 8.1, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.2, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:M/Au:N/C:P/I:P/A:P\", \"baseScore\": 6.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"MEDIUM\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.6, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-10-14T02:15:10.873",
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      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-787\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-17543\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2019-10-14T02:15:10.873\",\"lastModified\":\"2024-11-21T04:32:29.470\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applications that call LZ4_compress_fast with a large input. (This issue can also lead to data corruption.) NOTE: the vendor states \\\"only a few specific / uncommon usages of the API are at risk.\\\"\"},{\"lang\":\"es\",\"value\":\"LZ4 versiones anteriores a 1.9.2, presenta un desbordamiento de b\u00fafer en la regi\u00f3n heap de la memoria en LZ4_write32 (relacionado con la funci\u00f3n LZ4_compress_destSize), que afecta a las aplicaciones que llaman a LZ4_compress_fast con una entrada larga. (Este problema tambi\u00e9n puede conllevar a la corrupci\u00f3n de datos). 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-01-20T21:04:02+00:00",
      "cve": "CVE-2019-17543",
      "id": "CVE-2019-17543",
      "initial_release_date": "2019-07-17T00:00:00+00:00",
      "product_status:fixed": "30",
      "product_status:known_affected": "4",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "lz4: heap-based buffer overflow in LZ4_write32",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-17543.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-05-20T03:21:31Z",
      "cve": "CVE-2019-17543",
      "id": "CVE-2019-17543",
      "initial_release_date": "2023-02-15T04:07:21Z",
      "product_status:known_affected": "317",
      "product_status:recommended": "330",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-17543",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-17543.json",
      "version": "37"
    }
  }
}



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Taxonomy of the tags.





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.