CVE-2018-20336 Memory corruption in n/a
A stack-based buffer overflow in ASUSWRT allows attackers to leak information via a long UDP string.
- 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-2018-20336?
CVE-2018-20336 is a high-severity memory corruption vulnerability in n/a, published on 17 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in ASUSWRT 3.0.0.4.384.20308. There is a stack-based buffer overflow issue in parse_req_queries function in wanduck.c via a long string over UDP, which may lead to an information leak.
Weakness: CWE-120
Which versions are affected by CVE-2018-20336?
It affects 1 product.
Products include Asus Asuswrt-Merlin.
How do I fix CVE-2018-20336?
No fix has been published for CVE-2018-20336 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-2018-20336 being exploited?
There is no known exploitation of CVE-2018-20336 in the wild and no public exploit code.
Sources
Also known as GHSA-xpj4-6w39-7c42.