CVE-2016-1486 Denial of service in Cisco AsyncOS through 9.7.1-066

High 7.5 Published Updated

Remote attackers can cause a denial of service on Cisco Email Security Appliances by exploiting the Advanced Malware Protection attachment scanning feature.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2016-1486?

CVE-2016-1486 is a high-severity denial of service vulnerability in Cisco Email Security Appliance, published on 28 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the email attachment scanning functionality of the Advanced Malware Protection (AMP) feature of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop scanning and forwarding email messages due to a denial of service (DoS) condition. Affected Products: This vulnerability affects Cisco AsyncOS Software releases 9.7.1 and later, prior to the first fixed release, for both virtual and hardware Cisco Email Security Appliances, if the AMP feature is configured to scan incoming email attachments. More Information: CSCuy99453. Known Affected Releases: 9.7.1-066. Known Fixed Releases: 10.0.0-125 9.7.1-207 9.7.2-047.

Weakness: CWE-19

Which versions are affected by CVE-2016-1486?

It affects 1 product.

Products include Cisco Email Security Appliance.

How do I fix CVE-2016-1486?

No fix has been published for CVE-2016-1486 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2016-1486 being exploited?

There is no known exploitation of CVE-2016-1486 in the wild and no public exploit code.

All Cisco Email Security Appliance vulnerabilities

Sources

Also known as GHSA-87ch-4f82-95rr.

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