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Debian: CVE-2020-13696: xawtv -- security update

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Debian: CVE-2020-13696: xawtv -- security update

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
06/08/2020
Created
06/16/2020
Added
06/15/2020
Modified
06/24/2020

Description

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.

Solution(s)

  • debian-upgrade-xawtv

References

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