CVE-2019-20428 Denial of service in n/a
An attacker can cause a system panic and denial of service in the Lustre file system by sending a client packet with a large lock_count parameter.
- 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-2019-20428?
CVE-2019-20428 is a high-severity denial of service vulnerability in n/a, published on 27 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic due to the lack of validation for specific fields of packets sent by a client. The ldl_request_cancel function mishandles a large lock_count parameter.
Weakness: CWE-125
Which versions are affected by CVE-2019-20428?
It affects 1 product.
Products include Lustre Lustre.
How do I fix CVE-2019-20428?
No fix has been published for CVE-2019-20428 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-2019-20428 being exploited?
There is no known exploitation of CVE-2019-20428 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wc2r-5r95-vqwr.