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No exploitation reportedFix available

CVE-2019-12210

No exploitation reported by the sources we read.

  • Published2019-06-04

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2019-06-0421:29CVE publishedNVD

Versions per branch

NVD
Yubico pam-u2f
BranchAffectedFixed in
1.0= 1.0.7no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libu2f-hostSUSE:Linux Enterprise Server for SAP Applications 12 SP4all versions · fixed in 1.1.6-3.5.1
  • libu2f-hostSUSE:Linux Enterprise Server 12 SP4all versions · fixed in 1.1.6-3.5.1
  • libu2f-hostSUSE:Linux Enterprise Module for Basesystem 15 SP1all versions · fixed in 1.1.6-3.6.1
  • libu2f-hostSUSE:Linux Enterprise Module for Basesystem 15all versions · fixed in 1.1.6-3.6.1
  • libu2f-hostSUSE:Linux Enterprise Desktop 12 SP4all versions · fixed in 1.1.6-3.5.1
  • libu2f-hostopenSUSE:Leap 15.1all versions · fixed in 1.1.6-lp151.2.6.1
  • libu2f-hostopenSUSE:Leap 15.0all versions · fixed in 1.1.6-lp150.10.1
  • pam_u2fSUSE:Linux Enterprise Server for SAP Applications 12 SP4all versions · fixed in 1.0.8-3.3.1

10 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-12210 Red Hat Product Security

    pam-u2f: file descriptor not being closed with debug configuration leads to information disclosure

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
2019-06-04
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-pxf2-5pmm-5r8f

Frequently asked questions

What is 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.

Is CVE-2019-12210 actively exploited?

Active exploitation of CVE-2019-12210 has not been confirmed. Its EPSS score was 2.1% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-12210?

CVE-2019-12210 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

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