UBUNTU-CVE-2020-13696

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Source
https://ubuntu.com/security/CVE-2020-13696
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-13696.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-13696
Upstream
Downstream
Related
Published
2020-06-08T17:15:00Z
Modified
2026-01-30T02:50:14Z
Severity
  • 4.4 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:16.04:LTS / xawtv

Package

Name
xawtv
Purl
pkg:deb/ubuntu/xawtv@3.103-3+deb8u1build0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.103-3+deb8u1build0.16.04.1

Affected versions

3.*
3.103-3
3.103-3build1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "alevtd",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "fbtv",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "pia",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "radio",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "scantv",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "streamer",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "ttv",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "v4l-conf",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "webcam",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "xawtv",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "xawtv-plugin-qt",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "xawtv-plugins",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        },
        {
            "binary_name": "xawtv-tools",
            "binary_version": "3.103-3+deb8u1build0.16.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-13696.json"

Ubuntu:18.04:LTS / xawtv

Package

Name
xawtv
Purl
pkg:deb/ubuntu/xawtv@3.103-4build1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.103-4build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "alevtd",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "fbtv",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "pia",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "radio",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "scantv",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "streamer",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "ttv",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "v4l-conf",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "webcam",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "xawtv",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "xawtv-plugin-qt",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "xawtv-plugins",
            "binary_version": "3.103-4build1"
        },
        {
            "binary_name": "xawtv-tools",
            "binary_version": "3.103-4build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-13696.json"

Ubuntu:20.04:LTS / xawtv

Package

Name
xawtv
Purl
pkg:deb/ubuntu/xawtv@3.106-1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.106-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "alevtd",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "fbtv",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "pia",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "radio",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "scantv",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "streamer",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "ttv",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "v4l-conf",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "webcam",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "xawtv",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "xawtv-plugin-qt",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "xawtv-plugins",
            "binary_version": "3.106-1"
        },
        {
            "binary_name": "xawtv-tools",
            "binary_version": "3.106-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-13696.json"