CVE-2024-20318
Assigner: cisco
Published: 2024-03-13T16:46:24.113Z
State: PUBLISHED
descriptions: value: A vulnerability in the Layer 2 Ethernet services of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause the line card network processor to reset, resulting in a denial of service (DoS) condition.
 This vulnerability is due to the incorrect handling of specific Ethernet frames that are received on line cards that have the Layer 2 services feature enabled. An attacker could exploit this vulnerability by sending specific Ethernet frames through an affected device. A successful exploit could allow the attacker to cause the ingress interface network processor to reset, resulting in a loss of traffic over the interfaces that are supported by the network processor. Multiple resets of the network processor would cause the line card to reset, resulting in a DoS condition.
affected: vendor: Cisco
product: Cisco IOS XR Software
versions: version: 6.5.2
status: affected
version: 6.5.3
status: affected
version: 6.6.2
status: affected
version: 6.6.3
status: affected
version: 6.6.25
status: affected
version: 7.0.1
status: affected
version: 7.0.2
status: affected
version: 7.1.1
status: affected
version: 7.1.15
status: affected
version: 7.1.2
status: affected
version: 7.1.3
status: affected
version: 6.7.1
status: affected
version: 6.7.2
status: affected
version: 6.7.3
status: affected
version: 7.3.1
status: affected
version: 7.3.2
status: affected
version: 7.3.3
status: affected
version: 7.3.5
status: affected
version: 7.4.1
status: affected
version: 7.4.2
status: affected
version: 6.8.1
status: affected
version: 6.8.2
status: affected
version: 7.5.1
status: affected
version: 7.5.3
status: affected
version: 7.5.2
status: affected
version: 7.5.4
status: affected
version: 7.5.5
status: affected
version: 7.6.1
status: affected
version: 7.6.2
status: affected
version: 7.7.1
status: affected
version: 7.7.2
status: affected
version: 6.9.1
status: affected
version: 6.9.2
status: affected
version: 7.8.1
status: affected
version: 7.8.2
status: affected
version: 7.9.1
status: affected
problemTypes: descriptions: description: Improper Input Validation
type: cwe
cweId: CWE-20
metrics: format: cvssV3_1
cvssV3_1: version: 3.1
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
baseScore: 7.4
baseSeverity: HIGH
attackVector: ADJACENT_NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: CHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploits: value: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
source: advisory: cisco-sa-xrl2vpn-jesrU3fc
discovery: EXTERNAL
defects: CSCwe29150