CVE-2020-5134 Denial of service in SonicOS
An authenticated attacker can crash the SonicWall firewall by triggering an out-of-bounds file reference, requiring a software patch.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5134?
CVE-2020-5134 is a medium-severity denial of service vulnerability in Sonicwall Sonicos, published on 12 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in SonicOS allows an authenticated attacker to cause out-of-bound invalid file reference leads to a firewall crash. This vulnerability affected SonicOS Gen 6 version 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.
Weakness: CWE-125
Which versions are affected by CVE-2020-5134?
It affects 2 products.
Products include Sonicwall Sonicos, Sonicwall Sonicosv.
How do I fix CVE-2020-5134?
No fix has been published for CVE-2020-5134 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-5134 being exploited?
There is no known exploitation of CVE-2020-5134 in the wild and no public exploit code.
Other vulnerabilities in Sonicwall Sonicos
Sources
Also known as GHSA-m48j-cx36-2j54.