CVE-2019-17624 Memory corruption in n/a
A stack-based buffer overflow in X.Org X Server allows attackers to cause a denial of service via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-17624?
CVE-2019-17624 is a high-severity memory corruption vulnerability in X.org X Server, published on 16 Oct 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
"" In X.Org X Server 1.20.4, there is a stack-based buffer overflow in the function XQueryKeymap. For example, by sending ct.c_char 1000 times, an attacker can cause a denial of service (application crash) or possibly have unspecified other impact. Note: It is disputed if the X.Org X Server is involved or if there is a stack overflow.
Weakness: CWE-787
Which versions are affected by CVE-2019-17624?
It affects 1 product.
Products include X.org X Server.
How do I fix CVE-2019-17624?
No fix has been published for CVE-2019-17624 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-2019-17624 being exploited?
There is no known exploitation of CVE-2019-17624 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in X.org X Server
- CVE-2026-56000 xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()
- CVE-2017-10971 Memory corruption in n/a
- CVE-2026-55999 xorg-server / xwayland glamor font atlas Heap Buffer Overflow
- CVE-2022-2319 Memory corruption in xorg-x11-server
- CVE-2022-2320 Memory corruption in xorg-x11-server
Sources
Also known as GHSA-76vq-rvvq-q48w.