CVE-2019-14657

Yealink phones through 2019-08-04 have an issue with OpenVPN file upload

published October 8, 2019

CVSS
—
EPSS
4%
Percentile
89.8
In the wild
Unconfirmed
What it is

Yealink phones through 2019-08-04 have an issue with OpenVPN file upload. They execute tar as root to extract files, but do not validate the extraction directory. Creating a tar file with ../../../../ allows replacement of almost any file on a phone. This leads to password replacement and arbitrary code execution as root.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03735 · 89.8th percentile
Published
2019-10-08T12:02Z
EPSS history
Timeline
  • 08 OCT 12:02Z
    Yealink phones through 2019-08-04 have an issue with OpenVPN file upload
    cvelistv5