CVE-2022-23003 Shared secret or Point multiplication of NIST P-256 points with X coordinate of zero
An attacker can cause a limited denial of service by triggering an invalid point multiplication result in the Sweet B Library.
- 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-2022-23003?
CVE-2022-23003 is a medium-severity denial of service vulnerability in Western Digital Sweet B Library, published on 29 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
When computing a shared secret or point multiplication on the NIST P-256 curve that results in an X coordinate of zero, the resulting output is not properly reduced modulo the P-256 field prime and is invalid. The resulting output may cause an error when used in other operations. This may be leveraged by an attacker to cause an error scenario or incorrect choice of session key in applications which use the library, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.
Which versions are affected by CVE-2022-23003?
It affects 1 product.
Products include Westerndigital Sweet B.
How do I fix CVE-2022-23003?
No fix has been published for CVE-2022-23003 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-2022-23003 being exploited?
There is no known exploitation of CVE-2022-23003 in the wild and no public exploit code.