CVE-2019-17320 Memory corruption in XFTP

Critical 9.8 Published Updated

A buffer overflow in NetSarang XFTP Client allows remote attackers to execute arbitrary code via a crafted filename from a malicious FTP server.

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-2019-17320?

CVE-2019-17320 is a critical memory corruption vulnerability in NetSarang XFTP, published on 10 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

NetSarang XFTP Client 6.0149 and earlier version contains a buffer overflow vulnerability caused by improper boundary checks when copying file name from an attacker controlled FTP server. That leads attacker to execute arbitrary code by sending a crafted filename.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2019-17320?

It affects 1 product.

Products include Netsarang Xftp.

How do I fix CVE-2019-17320?

No fix has been published for CVE-2019-17320 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2019-17320 being exploited?

There is no known exploitation of CVE-2019-17320 in the wild and no public exploit code.

Sources

Also known as GHSA-j63h-gfj3-rm54.

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