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.
References
Configurations
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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
Products Affected
opensuse
- backports_sle
- leap
linuxtv
- xawtv
fedoraproject
- fedora
canonical
- ubuntu_linux
debian
- debian_linux