CVE-2020-13696

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.
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Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxtv:xawtv:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

Configuration 4 (hide)

OR cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Configuration 5 (hide)

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*

Information

Published : 2020-06-08 10:15

Updated : 2022-04-28 12:30


NVD link : CVE-2020-13696

Mitre link : CVE-2020-13696


JSON object : View

CWE
CWE-863

Incorrect Authorization

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Products Affected

opensuse

  • backports_sle
  • leap

linuxtv

  • xawtv

fedoraproject

  • fedora

canonical

  • ubuntu_linux

debian

  • debian_linux