CVE-2019-19334 (GCVE-0-2019-19334)

Vulnerability from cvelistv5 – Published: 2019-12-06 15:22 – Updated: 2024-08-05 02:16
VLAI?
Summary
In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "identityref". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of service or possibly gain code execution.
Severity ?
8.1 (High)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Red Hat libyang Affected: libyang all versions before 1.0-r5
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c\u00f3digo.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV30\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/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:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-121\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.11:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"65E91322-5F67-43C2-8112-5ECAEC2A3C12\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.11:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"80A88DE4-93F8-40C3-AA52-A5F353F028AA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.12:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"05C120CA-50EF-4B6D-92C9-ED736219DB07\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.12:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"99D1FA55-3F56-4E09-B41E-B05C199B96B8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.13:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"35D48EC4-58D2-49C6-8049-920787733587\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.13:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"B57F3953-49D6-413C-A4AE-03125935FC77\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.14:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"DD62411F-A524-4E80-B540-780EA39CB6A4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.15:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FEF091B1-978A-4881-B1FC-6848CD1A7BBF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.16:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0C50D690-9A4D-4B78-BF4E-A4D9B4074216\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.16:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"124A5D30-7451-4516-9AA2-963AE62DD679\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:0.16:r3:*:*:*:*:*:*\",\"matchCriteriaId\":\"C260D13B-82E9-4596-9116-61073B42D661\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:1.0:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"5F8D5FC0-959E-4014-9CB7-91378CC8B2BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:1.0:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"DCBDA519-805B-4193-8092-75E2748A7BC3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:1.0:r3:*:*:*:*:*:*\",\"matchCriteriaId\":\"4653ED0D-1E48-4E56-ACA4-0475C9568A89\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:cesnet:libyang:1.0:r4:*:*:*:*:*:*\",\"matchCriteriaId\":\"F0BEE023-C83B-4465-97BC-8E15627025D1\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4CFF558-3C47-480D-A2F0-BABF26042943\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"80F0FA5D-8D3B-4C0E-81E2-87998286AF33\"}]}]}],\"references\":[{\"url\":\"https://access.redhat.com/errata/RHSA-2019:4360\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19334\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Issue 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  }
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.