VDB
CVE-2020-13696
CVE-2020-13696
PUBLISHED
CVSS 4.400000095367432 MEDIUM
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.
EPSS 0.36% · 28.4th percentile
Risk Scores
CVSS 3.1
4.400000095367432
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS Score
0.36%
28.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | xawtv | 0, 3.103-4build1 |
| Ubuntu:16.04:LTS | xawtv | 3.103-3build1, 3.103-3, 0 |
| Ubuntu:20.04:LTS | xawtv | 0, 3.106-1 |
Timeline
- Jun 7, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-13696 third-party-advisory
- https://www.openwall.com/lists/oss-security/2020/06/04/6 third-party-advisory
- https://www.openwall.com/lists/oss-security/2020/06/04/6/1 third-party-advisory
- https://ubuntu.com/security/notices/USN-4518-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-13696 third-party-advisory