CVE-2019-17178 Memory corruption in n/a
A memory leak in LodePNG allows attackers to cause denial of service via crafted PNG images due to improper realloc usage.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-17178?
CVE-2019-17178 is a high-severity memory corruption vulnerability in Freerdp Freerdp, published on 4 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
HuffmanTree_makeFromFrequencies in lodepng.c in LodePNG through 2019-09-28, as used in WinPR in FreeRDP and other products, has a memory leak because a supplied realloc pointer (i.e., the first argument to realloc) is also used for a realloc return value.
Which versions are affected by CVE-2019-17178?
It affects 3 products.
Products include Freerdp Freerdp, Lodev Lodepng, Opensuse Leap.
How do I fix CVE-2019-17178?
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-2019-17178 being exploited?
There is no known exploitation of CVE-2019-17178 in the wild and no public exploit code.
Other vulnerabilities in Freerdp Freerdp
- CVE-2021-37594 Other in n/a
- CVE-2021-37595 Other in n/a
- CVE-2026-67305 FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr
- CVE-2026-66402 FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass
- CVE-2026-67289 FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection
Sources
Also known as DEBIAN-CVE-2019-17178, GHSA-v77x-r3jc-52jh, UBUNTU-CVE-2019-17178.