CVE-2020-13696 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2020-13696 Interim 1 22 2025-02-17T01:27:47Z current 2021-05-30T14:40:38Z 2025-02-17T01:27:47Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z 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. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/sle-security-updates/2020-June/007006.html E-Mail link for SUSE-SU-2020:1712-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/2R644K2DUV2CAKGQ6QMQTY7Z46SYWCLB/ E-Mail link for openSUSE-SU-2020:0784-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BSMQBLXPKPRPTKV2QDMEOEBDNPUON2C6/ E-Mail link for openSUSE-SU-2020:0787-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Linux Enterprise Workstation Extension 12 SP4 SUSE Linux Enterprise Workstation Extension 12 SP4 SUSE Linux Enterprise Workstation Extension 12 SP5 SUSE Linux Enterprise Workstation Extension 12 SP4 SUSE Linux Enterprise Workstation Extension 12 SP5 SUSE Package Hub 15 SP1 openSUSE Leap 15.1 openSUSE Tumbleweed alevtd-3.103-bp151.4.3.1 alevtd-3.103-lp151.3.3.1 alevtd-3.107-2.5 motv-3.103-bp151.4.3.1 motv-3.103-lp151.3.3.1 motv-3.107-2.5 pia-3.103-bp151.4.3.1 pia-3.103-lp151.3.3.1 pia-3.107-2.5 tv-common-3.103-6.3.1 tv-common-3.103-bp151.4.3.1 tv-common-3.103-lp151.3.3.1 tv-common-3.107-2.5 v4l-conf-3.103-6.3.1 v4l-conf-3.103-bp151.4.3.1 v4l-conf-3.103-lp151.3.3.1 v4l-conf-3.107-2.5 v4l-tools-3.103-6.3.1 v4l-tools-3.103-bp151.4.3.1 v4l-tools-3.103-lp151.3.3.1 v4l-tools-3.107-2.5 xawtv-3.103-bp151.4.3.1 xawtv-3.103-lp151.3.3.1 xawtv-3.107-2.5 tv-common-3.103-6.3.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP4 v4l-conf-3.103-6.3.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP4 v4l-tools-3.103-6.3.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP4 tv-common-3.103-6.3.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP5 v4l-conf-3.103-6.3.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP5 v4l-tools-3.103-6.3.1 as a component of SUSE Linux Enterprise Workstation Extension 12 SP5 alevtd-3.103-bp151.4.3.1 as a component of SUSE Package Hub 15 SP1 motv-3.103-bp151.4.3.1 as a component of SUSE Package Hub 15 SP1 pia-3.103-bp151.4.3.1 as a component of SUSE Package Hub 15 SP1 tv-common-3.103-bp151.4.3.1 as a component of SUSE Package Hub 15 SP1 v4l-conf-3.103-bp151.4.3.1 as a component of SUSE Package Hub 15 SP1 v4l-tools-3.103-bp151.4.3.1 as a component of SUSE Package Hub 15 SP1 xawtv-3.103-bp151.4.3.1 as a component of SUSE Package Hub 15 SP1 alevtd-3.103-lp151.3.3.1 as a component of openSUSE Leap 15.1 motv-3.103-lp151.3.3.1 as a component of openSUSE Leap 15.1 pia-3.103-lp151.3.3.1 as a component of openSUSE Leap 15.1 tv-common-3.103-lp151.3.3.1 as a component of openSUSE Leap 15.1 v4l-conf-3.103-lp151.3.3.1 as a component of openSUSE Leap 15.1 v4l-tools-3.103-lp151.3.3.1 as a component of openSUSE Leap 15.1 xawtv-3.103-lp151.3.3.1 as a component of openSUSE Leap 15.1 alevtd-3.107-2.5 as a component of openSUSE Tumbleweed motv-3.107-2.5 as a component of openSUSE Tumbleweed pia-3.107-2.5 as a component of openSUSE Tumbleweed tv-common-3.107-2.5 as a component of openSUSE Tumbleweed v4l-conf-3.107-2.5 as a component of openSUSE Tumbleweed v4l-tools-3.107-2.5 as a component of openSUSE Tumbleweed xawtv-3.107-2.5 as a component of openSUSE Tumbleweed 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. CVE-2020-13696 SUSE Linux Enterprise Workstation Extension 12 SP4:tv-common-3.103-6.3.1 SUSE Linux Enterprise Workstation Extension 12 SP4:v4l-conf-3.103-6.3.1 SUSE Linux Enterprise Workstation Extension 12 SP4:v4l-tools-3.103-6.3.1 SUSE Linux Enterprise Workstation Extension 12 SP5:tv-common-3.103-6.3.1 SUSE Linux Enterprise Workstation Extension 12 SP5:v4l-conf-3.103-6.3.1 SUSE Linux Enterprise Workstation Extension 12 SP5:v4l-tools-3.103-6.3.1 SUSE Package Hub 15 SP1:alevtd-3.103-bp151.4.3.1 SUSE Package Hub 15 SP1:motv-3.103-bp151.4.3.1 SUSE Package Hub 15 SP1:pia-3.103-bp151.4.3.1 SUSE Package Hub 15 SP1:tv-common-3.103-bp151.4.3.1 SUSE Package Hub 15 SP1:v4l-conf-3.103-bp151.4.3.1 SUSE Package Hub 15 SP1:v4l-tools-3.103-bp151.4.3.1 SUSE Package Hub 15 SP1:xawtv-3.103-bp151.4.3.1 openSUSE Leap 15.1:alevtd-3.103-lp151.3.3.1 openSUSE Leap 15.1:motv-3.103-lp151.3.3.1 openSUSE Leap 15.1:pia-3.103-lp151.3.3.1 openSUSE Leap 15.1:tv-common-3.103-lp151.3.3.1 openSUSE Leap 15.1:v4l-conf-3.103-lp151.3.3.1 openSUSE Leap 15.1:v4l-tools-3.103-lp151.3.3.1 openSUSE Leap 15.1:xawtv-3.103-lp151.3.3.1 openSUSE Tumbleweed:alevtd-3.107-2.5 openSUSE Tumbleweed:motv-3.107-2.5 openSUSE Tumbleweed:pia-3.107-2.5 openSUSE Tumbleweed:tv-common-3.107-2.5 openSUSE Tumbleweed:v4l-conf-3.107-2.5 openSUSE Tumbleweed:v4l-tools-3.107-2.5 openSUSE Tumbleweed:xawtv-3.107-2.5 moderate 3.6 AV:L/AC:L/Au:N/C:P/I:P/A:N 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N