A vulnerability in the Network Address Translation (NAT) Session Initiation Protocol (SIP) Application Layer Gateway (ALG) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of transient SIP packets on which NAT is performed on an affected device. An attacker could exploit this vulnerability by using UDP port 5060 to send crafted SIP packets through an affected device that is performing NAT for SIP packets. A successful exploit could allow an attacker to cause the device to reload, resulting in a denial of service (DoS) condition.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-sip-alg | Vendor Advisory |
Configurations
Configuration 1 (hide)
| AND |
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History
22 May 2023, 18:57
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:h:cisco:isr_4221:-:*:*:*:*:*:*:* |
cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:* |
| First Time |
Cisco 4221 Integrated Services Router
Cisco 4331 Integrated Services Router |
Information
Published : 2019-09-25 20:15
Updated : 2023-12-10 13:13
NVD link : CVE-2019-12646
Mitre link : CVE-2019-12646
CVE.ORG link : CVE-2019-12646
JSON object : View
Products Affected
cisco
- encs_5400
- 1101-4p
- encs_5100
- 1109-4p
- 4331_integrated_services_router
- 1100-4p
- 1109-2p
- ios_xe
- 1111x-8p
- csr_1000v
- isrv
- 1100-8p
- 4221_integrated_services_router