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CVE-2021-34713
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
Description
A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An attacker could exploit this vulnerability by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 6.1/10
- Exploit Score
- 6.5/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 6.9/10
- Confidentiality Impact
- None
- Availability Impact
- Complete
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.4/10
- Exploit Score
- 2.8/10
- Access Vector
- Adjacent_network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 4/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Changed
- User Interaction
- None
Products Affected
| CPE | Affected | Vulnerable | Excluding | Edit |
|---|---|---|---|---|
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* |
Yes
|
6.4 | 6.6.3 | |
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* |
Yes
|
6.7 | 6.7.1 | |
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* |
Yes
|
7.0 | 7.0.2 | |
| cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:* |
Yes
|
7.1 | 7.1.1 | |
| cpe:2.3:h:cisco:asr_9000:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9000v-v2:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9902:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:* |
No
|
- | ||
| cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:* |
No
|
- |