CVE-2020-13696

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Source
https://cve.org/CVERecord?id=CVE-2020-13696
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13696.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-13696
Downstream
Related
Published
2020-06-08T17:15:10Z
Modified
2026-04-16T04:37:34Z
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
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

Git / git.linuxtv.org/xawtv3.git

Affected ranges

Type
GIT
Repo
http://git.linuxtv.org/xawtv3.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8e3feea862db68d3ca0886f46cd99fab45d2db7c
Database specific
Show details 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.107"
        }
    ]
}

Affected versions

xawtv-3.*
xawtv-3.100
xawtv-3.102
xawtv-3.103
xawtv-3.104
xawtv-3.105
xawtv-3.106
xawtv-3.97
xawtv-3.98
xawtv-3.99.rc1
xawtv-3.99.rc2
xawtv-3.99.rc3
xawtv-3.99.rc4
xawtv-3.99.rc5
xawtv-3.99.rc6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13696.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "8.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.0-sp1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "15.1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "31"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "32"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "16.04"
            }
        ]
    }
]