Incorrect Permission Assignment for Critical Resource Affecting xawtv package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.36% (28th percentile)

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  • Snyk IDSNYK-DEBIAN9-XAWTV-571381
  • published4 Jun 2020
  • disclosed8 Jun 2020

Introduced: 4 Jun 2020

CVE-2020-13696  (opens in a new tab)
CWE-732  (opens in a new tab)

How to fix?

There is no fixed version for Debian:9 xawtv.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xawtv package and not the xawtv package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

An issue was discovered in LinuxTV xawtv before 3.107. The function dev_open() in v4l-conf.c does not perform sufficient checks to prevent an unprivileged caller of the program from opening unintended filesystem paths. This allows a local attacker with access to the v4l-conf setuid-root program to test for the existence of arbitrary files and to trigger an open on arbitrary files with mode O_RDWR. To achieve this, relative path components need to be added to the device path, as demonstrated by a v4l-conf -c /dev/../root/.bash_history command.

CVSS Base Scores

version 3.1