CVE-2019-3721 Improper Range Header Processing Vulnerability

Medium 4.3 Published Updated

Remote unauthenticated attackers can crash Dell OMSA by sending crafted range headers, causing excessive memory consumption and service unavailability.

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

What is CVE-2019-3721?

CVE-2019-3721 is a medium-severity denial of service vulnerability in Dell EMC Open Manage System Administrator, published on 25 Apr 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Dell EMC Open Manage System Administrator (OMSA) versions prior to 9.3.0 contain an Improper Range Header Processing Vulnerability. A remote unauthenticated attacker may send crafted requests with overlapping ranges to cause the application to compress each of the requested bytes, resulting in a crash due to excessive memory consumption and preventing users from accessing the system.

Weakness: CWE-770

Which versions are affected by CVE-2019-3721?

It affects 1 product.

Products include Dell Emc Openmanage Server Administrator.

How do I fix CVE-2019-3721?

No fix has been published for CVE-2019-3721 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-2019-3721 being exploited?

There is no known exploitation of CVE-2019-3721 in the wild and no public exploit code.

Sources

Also known as GHSA-v279-g8wh-682w.

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