CVE-2019-15880 Denial of service in FreeBSD
An unprivileged user can trigger a kernel panic in FreeBSD via the cryptodev module due to insufficient buffer size checking.
- 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-2019-15880?
CVE-2019-15880 is a critical denial of service vulnerability in Freebsd Freebsd, published on 13 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In FreeBSD 12.1-STABLE before r356911, and 12.1-RELEASE before p5, insufficient checking in the cryptodev module allocated the size of a kernel buffer based on a user-supplied length allowing an unprivileged process to trigger a kernel panic.
Which versions are affected by CVE-2019-15880?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2019-15880?
No fix has been published for CVE-2019-15880 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-2019-15880 being exploited?
There is no known exploitation of CVE-2019-15880 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-xw6q-jj4q-5cjw.