CVE-2020-13696
published 2020-06-08CVE-2020-13696: 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…
medium4.4CVSS 3.1
AVLACLPRLUINSUCLILAN
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.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | xawtv | < xawtv 3.107-1 (bookworm) | xawtv 3.107-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| linuxtv | xawtv | < 3.107 | 3.107 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.107-1 | 3.107-1 |
| linuxtv | xawtv | >= 0 < 3.103-3+deb8u1build0.16.04.1 | 3.103-3+deb8u1build0.16.04.1 |
| opensuse | backports_sle | — | — |
| opensuse | leap | — | — |
CVSS provenance
nvdv3.14.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
osv4.4MEDIUM