CVE-2016-2563 Memory corruption in n/a
A stack-based buffer overflow in PuTTY's SCP utility allows remote servers to execute arbitrary code or cause denial of service via crafted responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-2563?
CVE-2016-2563 is a critical memory corruption vulnerability in n/a, published on 7 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.
Weakness: CWE-119
Which versions are affected by CVE-2016-2563?
It affects 2 products.
Products include 9bis Kitty, Simon Tatham Putty.
How do I fix CVE-2016-2563?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-2563 being exploited?
There is no known exploitation of CVE-2016-2563 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2016-2563, GHSA-4hmm-v4j9-3hw2, MGASA-2016-0112, MGASA-2016-0118.