CVE-2019-13048 Denial of service in n/a

Medium 5.5 Published Updated

A flaw in ToaruOS kernel sys_sbrk allocation allows attackers to cause a denial of service via specific memory allocation patterns.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-13048?

CVE-2019-13048 is a medium-severity denial of service vulnerability in n/a, published on 29 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

kernel/sys/syscall.c in ToaruOS through 1.10.9 allows a denial of service upon a critical error in certain sys_sbrk allocation patterns (involving PAGE_SIZE, and a value less than PAGE_SIZE).

Weakness: CWE-190

Which versions are affected by CVE-2019-13048?

It affects 1 product.

Products include Toaruos Project Toaruos.

How do I fix CVE-2019-13048?

No fix has been published for CVE-2019-13048 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-2019-13048 being exploited?

There is no known exploitation of CVE-2019-13048 in the wild and no public exploit code.

Sources

Also known as GHSA-jqgv-2qxh-95qh.

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