Denial of service in Multiple Cisco Products
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-1285 |
| CWE-ID | CWE-770 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software |
Cisco UTD Snort IPS Engine Software for IOS XE Other software / Other software solutions Cisco UTD Engine for IOS XE SD-WAN Other software / Other software solutions Cisco 1000 Series Integrated Services Routers Hardware solutions / Routers & switches, VoIP, GSM, etc 4000 Series Integrated Services Routers Hardware solutions / Routers & switches, VoIP, GSM, etc Catalyst 8000V Edge Software Hardware solutions / Routers & switches, VoIP, GSM, etc Catalyst 8200 Series Edge Platforms Hardware solutions / Routers & switches, VoIP, GSM, etc Catalyst 8300 Series Edge Platforms Hardware solutions / Routers & switches, VoIP, GSM, etc Cloud Services Router 1000V Series Hardware solutions / Routers & switches, VoIP, GSM, etc Integrated Services Virtual Routers Hardware solutions / Routers & switches, VoIP, GSM, etc Snort Server applications / IDS/IPS systems, Firewalls and proxy servers |
| Vendor |
Cisco Systems, Inc Sourcefire |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Allocation of Resources Without Limits or Throttling
EUVDB-ID: #VU51250
Risk: Low
CVSSv4.0: 4.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-1285
CWE-ID:
CWE-770 - Allocation of Resources Without Limits or Throttling
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of error conditions when processing Ethernet frames. A remote attacker on the local network can send malicious Ethernet frames and cause a denial of service condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco UTD Snort IPS Engine Software for IOS XE: - - 17.4
Cisco UTD Engine for IOS XE SD-WAN: - - 17.4
Cisco 1000 Series Integrated Services Routers: All versions
4000 Series Integrated Services Routers: All versions
Catalyst 8000V Edge Software: All versions
Catalyst 8200 Series Edge Platforms: All versions
Catalyst 8300 Series Edge Platforms: All versions
Cloud Services Router 1000V Series: All versions
Integrated Services Virtual Routers: All versions
Snort: before 2.9.17
CPE2.3- cpe:2.3:a:cisco_systems:cisco_utd_snort_ips_engine_software_for_ios_xe:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_utd_snort_ips_engine_software_for_ios_xe:16.12:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_utd_snort_ips_engine_software_for_ios_xe:17.1:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_utd_engine_for_ios_xe_sd-wan:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_utd_engine_for_ios_xe_sd-wan:16.12:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:cisco_utd_engine_for_ios_xe_sd-wan:17.1:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_1000_series_integrated_services_routers:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:4000_series_integrated_services_routers:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:catalyst_8000v_edge_software:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:catalyst_8200_series_edge_platforms:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:catalyst_8300_series_edge_platforms:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cloud_services_router_1000v_series:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:integrated_services_virtual_routers:*:*:*:*:*:*:*:*
- cpe:2.3:a:sourcefire:snort:*:*:*:*:*:*:*:*
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
