CVE-2019-1910

CVSS V2 Medium 6.1 CVSS V3 High 7.4
Description
A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an unauthenticated attacker who is in the same IS–IS area to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of crafted IS–IS link-state protocol data units (PDUs). An attacker could exploit this vulnerability by sending a crafted link-state PDU to an affected system to be processed. A successful exploit could allow the attacker to cause all routers within the IS–IS area to unexpectedly restart the IS–IS process, resulting in a DoS condition. This vulnerability affects Cisco devices if they are running a vulnerable release of Cisco IOS XR Software earlier than Release 6.6.3 and are configured with the IS–IS routing protocol. Cisco has confirmed that this vulnerability affects both Cisco IOS XR 32-bit Software and Cisco IOS XR 64-bit Software.
Overview
  • CVE ID
  • CVE-2019-1910
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-08-07T21:15:11
  • Last Modified Date
  • 2023-03-03T19:01:10
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* 1 OR 6.6.3
cpe:2.3:a:cisco:carrier_routing_system:7.0.1:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.1
  • Severity
  • MEDIUM
  • Exploitability Score
  • 6.5
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.4
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 4
History
Created Old Value New Value Data Type Notes
2022-05-10 07:16:09 Added to TrackCVE
2022-12-04 00:48:30 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-04 00:48:30 2019-08-07T21:15Z 2019-08-07T21:15:11 CVE Published Date updated
2022-12-04 00:48:30 2021-04-12T14:21:06 CVE Modified Date updated
2022-12-04 00:48:30 Modified Vulnerability Status updated
2022-12-31 00:10:41 Modified Undergoing Analysis Vulnerability Status updated
2023-03-03 19:10:07 2023-03-03T19:01:10 CVE Modified Date updated
2023-03-03 19:10:07 Undergoing Analysis Analyzed Vulnerability Status updated