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Fencer Vulns
medium 4.4

CVE-2020-13696 json

An issue was discovered in LinuxTV xawtv before 3.107.

published 2020-06-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-5919

cvss
4.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

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.

Patch / fix

  • linuxtv xawtv 3.107
  • xawtv Debian 14, Debian 13, Debian 12 3.107-1

debian advisories DEBIAN-CVE-2020-13696

  • xawtv Ubuntu 16.04 LTS 3.103-3+deb8u1build0.16.04.1

ubuntu advisories UBUNTU-CVE-2020-13696

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xawtv SLE Workstation Extension 12 SP5, SLE Workstation Extension 12 SP4 3.103-6.3.1

suse advisories SUSE-SU-2020:1712-1

  • xawtv openSUSE Tumbleweed 3.107-2.5
  • xawtv Package Hub 15 SP1 3.103-bp151.4.3.1
  • xawtv openSUSE Leap 15.1 3.103-lp151.3.3.1

opensuse advisories openSUSE-SU-2024:11517-1openSUSE-SU-2020:0787-1openSUSE-SU-2020:0784-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-13696 updated cvss 5.1

xawtv: specially crafted input leads to information disclosure and user privilege escalation

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 2.0 3.6 AV:L/AC:L/Au:N/C:P/I:P/A:N

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.