CVE-2019-20432 Memory corruption in n/a
An attacker can cause a kernel panic and denial of service in the Lustre file system by sending malformed packets with invalid size fields.
- 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-2019-20432?
CVE-2019-20432 is a high-severity memory corruption 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 mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
Weakness: CWE-787
Which versions are affected by CVE-2019-20432?
It affects 1 product.
Products include Lustre Lustre.
How do I fix CVE-2019-20432?
No fix has been published for CVE-2019-20432 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-2019-20432 being exploited?
There is no known exploitation of CVE-2019-20432 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-r6qv-92wg-r8qx.