CVE-2019-12210
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-12210
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-12210.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201906-5
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 1.0.8-2 | |
| sles | affected | | |
| debian | bookworm | fixed | 1.0.8-1 |
| debian | bullseye | fixed | 1.0.8-1 |
| debian | forky | fixed | 1.0.8-1 |
| debian | sid | fixed | 1.0.8-1 |
| debian | trixie | fixed | 1.0.8-1 |
References
Verify integrity in audit chain (admin only). AS-IS.