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)
Linuxtv ≫ Xawtv Version < 3.107
Debian ≫ Debian Linux Version8.0
Opensuse ≫ Backports Sle Version15.0 Updatesp1
Opensuse ≫ Leap Version15.1
Fedoraproject ≫ Fedora Version31
Fedoraproject ≫ Fedora Version32
Canonical ≫ Ubuntu Linux Version16.04 SwEditionesm
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.36% 0.272
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.

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00009.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00013.html
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2020/06/04/6
Third Party Advisory
Mailing List
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-13696
Third Party Advisory
Broken Link
Issue Tracking
https://git.linuxtv.org/xawtv3.git/commit/?id=31f31f9cbaee7be806cba38e0ff5431bd44b20a3
Patch
Vendor Advisory
https://git.linuxtv.org/xawtv3.git/commit/?id=36dc44e68e5886339b4a0fbe3f404fb1a4fd2292
Patch
Vendor Advisory
https://git.linuxtv.org/xawtv3.git/commit/?id=8e3feea862db68d3ca0886f46cd99fab45d2db7c
Patch
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00018.html
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELOXU5LXQSQOXX64D4BICZV3TQWOBXHC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7XWAO7W2DGA6M52JGK2TDWUGF62Q2KY/
https://usn.ubuntu.com/4518-1/
Third Party Advisory