Vulnerability in Yubico Pam-U2f
CVE-2019-12210
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.021 (81.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.021 · change: +0.002
Affected products
- Yubico Pam-U2f — versions 1.0.7
References
- developers.yubico.com/pam-u2f/Release_Notes.html (Release Notes, Vendor Advisory)
- github.com/Yubico/pam-u2f/commit/18b1914e32b74ff52000f10e97067e841e5fff62 (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2019/06/05/1 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html (vendor-advisory)
Frequently asked questions
- What is CVE-2019-12210?
- CVE-2019-12210 is a high-severity vulnerability in Yubico Pam-U2f. CVSS score: 8.1/10. Published 2019-06-04.
- How severe is CVE-2019-12210?
- High severity. CVSS v3 base score is 8.1 out of 10.