FKIE_CVE-2020-13696
Vulnerability from fkie_nvd - Published: 2020-06-08 17:15 - Updated: 2024-11-21 05:01
Severity ?
Summary
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
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linuxtv | xawtv | * | |
| debian | debian_linux | 8.0 | |
| opensuse | backports_sle | 15.0 | |
| opensuse | leap | 15.1 | |
| fedoraproject | fedora | 31 | |
| fedoraproject | fedora | 32 | |
| canonical | ubuntu_linux | 16.04 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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