4.4

CVE-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 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.

Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxtvXawtv Version < 3.107
DebianDebian Linux Version8.0
OpensuseBackports Sle Version15.0 Updatesp1
OpensuseLeap Version15.1
FedoraprojectFedora Version31
FedoraprojectFedora Version32
CanonicalUbuntu Linux Version16.04 SwEditionesm
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.131
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.4 1.8 2.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
nvd@nist.gov 3.6 3.9 4.9
AV:L/AC:L/Au:N/C:P/I:P/A:N
CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.