Cisco IOS and IOS XE Software MP-BGP EVPN Denial of Service Vulnerability
Published Sep 24, 2020
7.5
HIGHCVSS 3.1
EPSS 1.10%
Description
A vulnerability in the implementation of Multiprotocol Border Gateway Protocol (MP-BGP) for the Layer 2 VPN (L2VPN) Ethernet VPN (EVPN) address family in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of Border Gateway Protocol (BGP) update messages that contain crafted EVPN attributes. An attacker could exploit this vulnerability by sending BGP update messages with specific, malformed attributes to an affected device. A successful exploit could allow the attacker to cause an affected device to crash, resulting in a DoS condition.
Affected products
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Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
| Vendor | Product | Default status | Versions |
|---|---|---|---|
| Cisco | Cisco IOS 15.2(5)E1 | unknown | Affected
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No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-24750 Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-bgp-evpn-dos-LNfYJxfF vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-24750 | Advisory | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-bgp-evpn-dos-LNfYJxfF | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.
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Red Hat
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GitHub
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