CVE-2020-13696
lowpriority · track · 18OT risk · elevatedEPSS 0.004 · 29 %ileEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.6–4.4
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (38)
External citations — patches, advisories, analysis.
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00009.htmlcnnvd
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00013.htmlcnnvd
- http://www.openwall.com/lists/oss-security/2020/06/04/6cnnvd
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-13696cnnvd
- https://git.linuxtv.org/xawtv3.git/commit/?id=31f31f9cbaee7be806cba38e0ff5431bd44b20a3cnnvd
- https://git.linuxtv.org/xawtv3.git/commit/?id=36dc44e68e5886339b4a0fbe3f404fb1a4fd2292cnnvd
- https://git.linuxtv.org/xawtv3.git/commit/?id=8e3feea862db68d3ca0886f46cd99fab45d2db7ccnnvd
- https://lists.debian.org/debian-lts-announce/2020/06/msg00018.htmlcnnvd
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