CVE-2020-13696

Katalog CVE

CVSS 4.4 · Medium EPSS 0,36%

Kerentanan Incorrect Authorization pada linuxtv xawtv, debian linux +4 lainnya. Skor CVSS 3.1 4.4 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

8 Juni 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

4.4 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-863: Incorrect Authorization

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 27,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.linuxtv.org/xawtv3.git/commit/?id=31f31f9cbaee7be806cba38e0ff5431bd44b20a3 patch · advisory vendor
• https://git.linuxtv.org/xawtv3.git/commit/?id=36dc44e68e5886339b4a0fbe3f404fb1a4fd2292 patch · advisory vendor
• https://git.linuxtv.org/xawtv3.git/commit/?id=8e3feea862db68d3ca0886f46cd99fab45d2db7c patch · advisory vendor
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00009.html mailing list · advisory pihak ketiga
• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00013.html mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2020/06/04/6 issue tracking · mailing list · advisory pihak ketiga
• https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-13696 broken link · issue tracking · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/06/msg00018.html mailing list · advisory pihak ketiga
• https://usn.ubuntu.com/4518-1/ advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELOXU5LXQSQOX...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7XWAO7W2DGA6...