CVE-2018-20819 Memory corruption in n/a
A heap-based buffer overflow in the Lepton image library allows attackers to cause a denial of service or potentially execute code via crafted JPEG files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-20819?
CVE-2018-20819 is a high-severity memory corruption vulnerability in n/a, published on 23 Apr 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
io/ZlibCompression.cc in the decompression component in Dropbox Lepton 1.2.1 allows attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact by crafting a jpg image file. The root cause is a missing check of header payloads that may be (incorrectly) larger than the maximum file size.
Weakness: CWE-787
Which versions are affected by CVE-2018-20819?
It affects 1 product.
Products include Dropbox Lepton.
How do I fix CVE-2018-20819?
No fix has been published for CVE-2018-20819 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-2018-20819 being exploited?
There is no known exploitation of CVE-2018-20819 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-hv3f-fvpg-gw6q.