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
History
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MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2020-06-08T16:32:54
Updated: 2020-10-05T02:06:13
Reserved: 2020-05-29T00:00:00
Link: CVE-2020-13696
JSON object: View
NVD Information
Status : Modified
Published: 2020-06-08T17:15:10.160
Modified: 2023-11-07T03:16:47.707
Link: CVE-2020-13696
JSON object: View
Redhat Information
No data.
CWE