CVE-2021-0299 (GCVE-0-2021-0299)
Vulnerability from cvelistv5 – Published: 2021-10-19 18:16 – Updated: 2024-09-16 19:46
VLAI?
Summary
An Improper Handling of Exceptional Conditions vulnerability in the processing of a transit or directly received malformed IPv6 packet in Juniper Networks Junos OS results in a kernel crash, causing the device to restart, leading to a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects systems with IPv6 configured. Devices with only IPv4 configured are not vulnerable to this issue. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S1, 20.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1.
Severity ?
7.5 (High)
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
- Denial of Service (DoS)
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Juniper Networks | Junos OS |
Unaffected:
unspecified , < 19.4R1
(custom)
Affected: 19.4 , < 19.4R3 (custom) Affected: 20.1 , < 20.1R2 (custom) Affected: 20.2 , < 20.2R1-S1, 20.2R2 (custom) |
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This issue does not affect Juniper Networks Junos OS versions prior to 19.4R1.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de Manejo Inapropiado de Condiciones Excepcionales en el procesamiento de un paquete IPv6 malformado recibido en tr\u00e1nsito o directamente en Juniper Networks Junos OS resulta en un bloqueo del kernel, causando el reinicio del dispositivo, conllevando a una Denegaci\u00f3n de Servicio (DoS). Si se sigue recibiendo y procesando este paquete, se crear\u00e1 una condici\u00f3n de Denegaci\u00f3n de Servicio (DoS) sostenida. Este problema s\u00f3lo afecta a los sistemas con IPv6 configurado. Los dispositivos con s\u00f3lo IPv4 configurado no son vulnerables a este problema. Este problema afecta a Juniper Networks Junos OS: versiones 19.4 anteriores a 19.4R3; versiones 20.1 anteriores a 20.1R2; versiones 20.2 anteriores a 20.2R1-S1, 20.2R2. Este problema no afecta a las versiones de Juniper Networks Junos OS anteriores a 19.4R1\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:N/I:N/A:C\",\"baseScore\":7.1,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":8.6,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"sirt@juniper.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-755\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-755\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B342307-98CF-45C9-9F08-5EB06C679B79\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"DC743EE4-8833-452A-94DB-655BF139F883\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"FE96A8EA-FFE3-4D8F-9266-21899149D634\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"C12A75C6-2D00-4202-B861-00FF71585FA0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:*\",\"matchCriteriaId\":\"70FF3DD4-14CB-435D-8529-0480EB853F60\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r1-s4:*:*:*:*:*:*\",\"matchCriteriaId\":\"84429093-AB3C-4C05-B8FA-87D94091820F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4DCFA774-96EF-4018-82CF-95C807025C24\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"76022948-4B07-43CB-824C-44E1AB3537CB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"25446F60-5CB9-4923-BCE8-609AE3CFDFBC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:*\",\"matchCriteriaId\":\"A23E5CEA-EFF5-4641-BC47-BA2D0859F0EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r2-s4:*:*:*:*:*:*\",\"matchCriteriaId\":\"760E2418-B945-4467-BDAC-7702DDF4C4EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:19.4:r2-s5:*:*:*:*:*:*\",\"matchCriteriaId\":\"98097AB6-56CB-42E4-96B4-ABBD4F36553C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8328FDE6-9707-4142-B905-3B07C0E28E35\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*\",\"matchCriteriaId\":\"41CD982F-E6F2-4951-9F96-A76C142DF08E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:*\",\"matchCriteriaId\":\"19FDC05F-5582-4F7E-B628-E58A3C0E7F2F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:*\",\"matchCriteriaId\":\"401306D1-E9CE-49C6-8DC9-0E8747B9DC2C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:*\",\"matchCriteriaId\":\"615EAF48-AD53-4CC2-B233-5EA5C0F72CB1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*\",\"matchCriteriaId\":\"CD07B7E2-F5C2-4610-9133-FDA9E66DFF4F\"}]}]}],\"references\":[{\"url\":\"https://kb.juniper.net/JSA11213\",\"source\":\"sirt@juniper.net\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://kb.juniper.net/JSA11213\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
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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.
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