CVE-2023-0751 GELI silently omits the keyfile if read from stdin
GELI silently uses a NULL key for subsequent devices when reading keyfiles from stdin, allowing trivial recovery of encrypted data.
- 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-2023-0751?
CVE-2023-0751 is a medium-severity vulnerability in Freebsd Freebsd, published on 8 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
When GELI reads a key file from standard input, it does not reuse the key file to initialize multiple providers at once resulting in the second and subsequent devices silently using a NULL key as the user key file. If a user only uses a key file without a user passphrase, the master key is encrypted with an empty key file allowing trivial recovery of the master key.
Weakness: CWE-20
Which versions are affected by CVE-2023-0751?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2023-0751?
No fix has been published for CVE-2023-0751 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-0751 being exploited?
There is no known exploitation of CVE-2023-0751 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-4j3q-rqjq-x3f3.