CVE-2017-6721 — MEDIUM (5.3)

Vulnerability Description

A vulnerability in the ingress processing of fragmented TCP packets by Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause the WAASNET process to restart unexpectedly, causing a denial of service (DoS) condition. More Information: CSCvc57428. Known Affected Releases: 6.3(1). Known Fixed Releases: 6.3(0.143) 6.2(3c)6 6.2(3.22).

CVSS Score

5.3

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Cisco	Wide Area Application Services	6.3\(1\)

Related Weaknesses (CWE)

CWE-20

References

http://www.securityfocus.com/bid/99200Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038747Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
http://www.securityfocus.com/bid/99200Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038747Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory

FAQ

What is CVE-2017-6721?

CVE-2017-6721 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability in the ingress processing of fragmented TCP packets by Cisco Wide Area Application Services (WAAS) could allow an unauthenticated, remote attacker to cause the WAASNET process to resta...

How severe is CVE-2017-6721?

CVE-2017-6721 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-6721?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Wide Area Application Services.