CVE-2021-23017 (GCVE-0-2021-23017)

Vulnerability from cvelistv5 – Published: 2021-06-01 12:28 – Updated: 2024-08-03 18:58
VLAI
Summary
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact.
Severity
No CVSS data available.
CWE
Assigner
f5
References
Impacted products
Vendor Product Version
n/a Nginx Web Server, Nginx Plus Affected: Nginx Web Server versions 0.6.18 thru 1.20.0 before 1.20.1, Nginx plus versions R13 thru R23 before R23 P1. Nginx plus version R24 before R24 P1
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potencial\"}],\"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:L\",\"baseScore\":7.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.2,\"impactScore\":5.5}],\"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}]},\"weaknesses\":[{\"source\":\"f5sirt@f5.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-193\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-193\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"0.6.18\",\"versionEndExcluding\":\"1.20.1\",\"matchCriteriaId\":\"236E1381-BE09-4C0B-9319-E803B7163ECC\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openresty:openresty:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"1.19.3.2\",\"matchCriteriaId\":\"BD31F1B9-1CDB-4547-A19D-6A416FC45510\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E460AA51-FCDA-46B9-AE97-E6676AA5E194\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A930E247-0B43-43CB-98FF-6CE7B8189835\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7CF3019-975D-40BB-A8A4-894E62BD3797\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:blockchain_platform:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"21.1.2\",\"matchCriteriaId\":\"D0DBC938-A782-433F-8BF1-CA250C332AA7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_control_plane_monitor:3.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"21B1EEE2-CC09-45D0-9424-C3DB0EF0DC67\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_control_plane_monitor:4.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"30446598-7680-4687-8E41-97E829F24998\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_control_plane_monitor:4.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F280A5FF-93B8-46BB-9A0C-46283CF494AE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_control_plane_monitor:4.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8591B5FB-D04C-477E-B974-60AA047815B2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_fraud_monitor:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.4\",\"versionEndIncluding\":\"4.4\",\"matchCriteriaId\":\"351ECB54-99BC-49E4-8A27-D62380ACFB50\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D52F557F-D0A0-43D3-85F1-F10B6EBFAEDF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:4.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F545DFC9-F331-4E1D-BACB-3D26873E5858\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:4.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CBE1A019-7BB6-4226-8AC4-9D6927ADAEFA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_operations_monitor:4.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B98BAEB2-A540-4E8A-A946-C4331B913AFD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_session_border_controller:8.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9C416FD3-2E2F-4BBC-BD5F-F896825883F4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:communications_session_border_controller:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D886339E-EDB2-4879-BD54-1800E4CA9CAE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:enterprise_communications_broker:3.3.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3DCDD73B-57B1-4580-B922-5662E3AC13B6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:oracle:enterprise_session_border_controller:8.4:*:*:*:*:*:*:*\",\"matchCriteri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List\",\"Patch\",\"Vendor Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/167720/Nginx-1.20.0-Denial-Of-Service.html\",\"source\":\"f5sirt@f5.com\",\"tags\":[\"Third Party Advisory\",\"VDB 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Party Advisory\"]},{\"url\":\"https://support.f5.com/csp/article/K12331123%2C\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://www.oracle.com/security-alerts/cpuapr2022.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpujan2022.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://www.oracle.com/security-alerts/cpuoct2021.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Third Party Advisory\"]}]}}"
  }
}


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Tags
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.