CVE-2017-16927 Memory corruption in n/a

High 8.4 Published Updated

Local attackers can trigger a buffer overflow in xrdp's session manager via crafted input, causing a crash or potential code execution.

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

What is CVE-2017-16927?

CVE-2017-16927 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 23 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The scp_v0s_accept function in sesman/libscp/libscp_v0.c in the session manager in xrdp through 0.9.4 uses an untrusted integer as a write length, which allows local users to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted input stream.

Weakness: CWE-119

Which versions are affected by CVE-2017-16927?

It affects 2 products.

Products include Debian Debian Linux, Neutrinolabs Xrdp.

How do I fix CVE-2017-16927?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-16927 being exploited?

There is no known exploitation of CVE-2017-16927 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2017-16927, DLA-1203-1, GHSA-26g9-q99r-c973, MGASA-2017-0456, UBUNTU-CVE-2017-16927.

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