CVE Vulnerability

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.

3.6 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

4.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 2.5

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

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

Configuration 1

cpe:2.3:a:linuxtv:xawtv:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Information

Published : 2020-06-08 05:15

Updated : 2022-04-28 07:30

NVD link : CVE-2020-13696

Mitre link : CVE-2020-13696

Products Affected
No products.
CWE
CWE-863