CVE-2011-1781 Denial of service in n/a

Low 1.2 Published Updated

Local attackers can cause a system crash via crafted ELF programs when SystemTap unprivileged mode is enabled.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2011-1781?

CVE-2011-1781 is a low-severity denial of service vulnerability in n/a, published on 29 Aug 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

SystemTap 1.4, when unprivileged (aka stapusr) mode is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding (aka backtracing).

Weakness: CWE-189

Which versions are affected by CVE-2011-1781?

It affects 1 product.

Products include Systemtap Systemtap.

How do I fix CVE-2011-1781?

Apply the vendor's patch.

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-2011-1781 being exploited?

There is no known exploitation of CVE-2011-1781 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-1781, GHSA-qrqj-c695-3j7q.

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