A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco Aironet Series Access Points Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of incoming mDNS traffic. An attacker could exploit this vulnerability by sending a crafted mDNS packet to an affected device through a wireless network that is configured in FlexConnect local switching mode or through a wired network on a configured mDNS VLAN. A successful exploit could allow the attacker to cause the access point (AP) to reboot, resulting in a DoS condition.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aironet-mdns-dos-E6KwYuMx | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
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Configuration 2 (hide)
| AND |
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History
22 May 2023, 18:57
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Cisco 1100 Integrated Services Router
|
|
| CPE | cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:* |
31 Mar 2021, 16:57
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:h:cisco:aironet_1540:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9100:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_2800:-:*:*:*:*:*:*:* cpe:2.3:a:cisco:aironet_access_point_software:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_1560:-:*:*:*:*:*:*:* cpe:2.3:o:cisco:catalyst_9800_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_1800:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_4800:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_iw6300:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:esw6300:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:aironet_3800:-:*:*:*:*:*:*:* |
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| CVSS |
v2 : v3 : |
v2 : 3.3
v3 : 7.4 |
| References | (CISCO) https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aironet-mdns-dos-E6KwYuMx - Vendor Advisory |
24 Mar 2021, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-03-24 20:15
Updated : 2023-12-10 13:41
NVD link : CVE-2021-1439
Mitre link : CVE-2021-1439
CVE.ORG link : CVE-2021-1439
JSON object : View
Products Affected
cisco
- aironet_access_point_software
- aironet_1540
- aironet_1800
- aironet_1560
- esw6300
- aironet_2800
- aironet_4800
- catalyst_9800
- catalyst_9800_firmware
- aironet_3800
- 1100_integrated_services_router
- catalyst_9100
- catalyst_iw6300
CWE
CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')