Auth bypass in FreeBSD

CVE-2019-15877

In FreeBSD 12.1-STABLE before r356606 and 12.1-RELEASE before 12.1-RELEASE-p3, driver specific ioctl command handlers in the ixl network driver failed to check whether the caller has sufficient privileges allowing unprivileged users to trigger updates to the device's non-volatile memory.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-15877: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • FreeBSD — versions 12.1
  • FreeBSD — versions 12.1-STABLE before r356606, 12.1-RELEASE before 12.1-RELEASE-p3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-15877?
CVE-2019-15877 is a medium-severity vulnerability in FreeBSD, classified under Missing Authorization. CVSS score: 5.5/10. Published 2020-04-28.
How severe is CVE-2019-15877?
Medium severity. CVSS v3 base score is 5.5 out of 10.