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nvd[email protected]NVD:CVE-2020-3527
HistorySep 24, 2020 - 6:15 p.m.

CVE-2020-3527

2020-09-2418:15:21
CWE-20
CWE-400
[email protected]
web.nvd.nist.gov
6
polaris kernel
cisco catalyst 9200
remote attacker
crash
jumbo frames
mtu size
management interface
automatic recovery

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS

0.002

Percentile

52.7%

JSON

A vulnerability in the Polaris kernel of Cisco Catalyst 9200 Series Switches could allow an unauthenticated, remote attacker to crash the device. The vulnerability is due to insufficient packet size validation. An attacker could exploit this vulnerability by sending jumbo frames or frames larger than the configured MTU size to the management interface of this device. A successful exploit could allow the attacker to crash the device fully before an automatic recovery.

Affected configurations

Nvd
Node
ciscoios_xeRange16.9.0–16.9.5
OR
ciscoios_xeRange16.12.0–16.12.3
AND
ciscocatalyst_c9200l-24p-4gMatch-
OR
ciscocatalyst_c9200l-24p-4xMatch-
OR
ciscocatalyst_c9200l-24pxg-2yMatch-
OR
ciscocatalyst_c9200l-24pxg-4xMatch-
OR
ciscocatalyst_c9200l-24t-4gMatch-
OR
ciscocatalyst_c9200l-24t-4xMatch-
OR
ciscocatalyst_c9200l-48p-4gMatch-
OR
ciscocatalyst_c9200l-48p-4xMatch-
OR
ciscocatalyst_c9200l-48pxg-2yMatch-
OR
ciscocatalyst_c9200l-48pxg-4xMatch-
OR
ciscocatalyst_c9200l-48t-4gMatch-
OR
ciscocatalyst_c9200l-48t-4xMatch-
VendorProductVersionCPE
ciscoios_xe*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24p-4g-cpe:2.3:h:cisco:catalyst_c9200l-24p-4g:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24p-4x-cpe:2.3:h:cisco:catalyst_c9200l-24p-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24pxg-2y-cpe:2.3:h:cisco:catalyst_c9200l-24pxg-2y:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24pxg-4x-cpe:2.3:h:cisco:catalyst_c9200l-24pxg-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24t-4g-cpe:2.3:h:cisco:catalyst_c9200l-24t-4g:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-24t-4x-cpe:2.3:h:cisco:catalyst_c9200l-24t-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-48p-4g-cpe:2.3:h:cisco:catalyst_c9200l-48p-4g:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-48p-4x-cpe:2.3:h:cisco:catalyst_c9200l-48p-4x:-:*:*:*:*:*:*:*
ciscocatalyst_c9200l-48pxg-2y-cpe:2.3:h:cisco:catalyst_c9200l-48pxg-2y:-:*:*:*:*:*:*:*
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CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS3

8.6

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

EPSS

0.002

Percentile

52.7%

JSON
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