An issue exists in LinuxTV xawtv prior to 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.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
linuxtv xawtv |
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debian debian linux 8.0 |
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opensuse leap 15.1 |
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opensuse backports sle 15.0 |
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fedoraproject fedora 31 |
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fedoraproject fedora 32 |
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canonical ubuntu linux 16.04 |
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