First published: Wed Jan 27 2016(Updated: )
cifs-ao in the CIFS optimization functionality on Cisco Wide Area Application Service (WAAS) and Virtual WAAS (vWAAS) devices 5.x before 5.3.5d and 5.4 and 5.5 before 5.5.3 allows remote attackers to cause a denial of service (resource consumption and device reload) via crafted network traffic, aka Bug ID CSCus85330.
Credit: ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco Wide Area Application Services | =5.1.1 | |
Cisco Wide Area Application Services | =5.1.1a | |
Cisco Wide Area Application Services | =5.1.1b | |
Cisco Wide Area Application Services | =5.1.1c | |
Cisco Wide Area Application Services | =5.1.1d | |
Cisco Wide Area Application Services | =5.2.1 | |
Cisco Wide Area Application Services | =5.2_base | |
Cisco Wide Area Application Services | =5.3.1 | |
Cisco Wide Area Application Services | =5.3.3 | |
Cisco Wide Area Application Services | =5.3.5 | |
Cisco Wide Area Application Services | =5.3.5a | |
Cisco Wide Area Application Services | =5.3.5b | |
Cisco Wide Area Application Services | =5.3.5c |
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CVE-2015-6421 has a high severity rating as it allows remote attackers to cause a denial of service through crafted network traffic.
The recommended fix for CVE-2015-6421 is to upgrade the Cisco Wide Area Application Services to version 5.3.5d or later.
CVE-2015-6421 affects Cisco Wide Area Application Service (WAAS) and Virtual WAAS (vWAAS) devices running certain versions prior to 5.3.5d.
CVE-2015-6421 can be exploited through a denial of service attack targeting resource consumption and device reload.
CVE-2015-6421 was disclosed on January 27, 2016, highlighting its potential impact on Cisco WAAS devices.