CVE-2019-12210 Information disclosure in n/a
Attackers can leak sensitive data or cause disk exhaustion via inherited file descriptors in Yubico pam-u2f when debug logging is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-12210?
CVE-2019-12210 is a high-severity vulnerability in n/a, published on 4 Jun 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Yubico pam-u2f 1.0.7, when configured with debug and a custom debug log file is set using debug_file, that file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process; the child process can then read from and write to it. This can leak sensitive information and also, if written to, be used to fill the disk or plant misinformation.
Which versions are affected by CVE-2019-12210?
It affects 1 product.
Products include Yubico Pam-U2f.
How do I fix CVE-2019-12210?
Apply the vendor's patch.
Is CVE-2019-12210 being exploited?
There is no known exploitation of CVE-2019-12210 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-12210, GHSA-pxf2-5pmm-5r8f.