Denial of service in Cisco IOS XE Software
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-3422 |
| CWE-ID | CWE-371 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cisco IOS XE Operating systems & Components / Operating system |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) State Issues
EUVDB-ID: #VU47240
Risk: Medium
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-3422
CWE-ID:
CWE-371 - State Issues
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perofrm a denial of service (DoS) attack.
The vulnerability exists due to the IP Service Level Agreement (SLA) responder feature could consume a port that could be used by another feature. A remote attacker can send specific IP SLA control packets and cause an in-use port to be consumed by the IP SLA responder, resulting in a denial of service condition.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco IOS XE: 16.9.3
External linkshttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipsla-jw2DJmSv
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
