PT-2019-4400 · Linux+2 · Linux Kernel+2

Kangjie Lu · Published 2019-11-05 · Updated 2022-04-18 · CVE-2019-18786

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.3.8

Description The issue is related to the function rcar drif g fmt sdr cap in the Linux kernel, specifically in the file drivers/media/platform/rcar drif.c. It is caused by the uninitialized variable f->fmt.sdr.reserved, which could lead to a memory disclosure problem. This could potentially allow an attacker to gain unauthorized access to protected information.

Recommendations For Linux kernel versions prior to 5.3.8, update to version 5.3.8 or later to resolve the issue. At the moment, there is no information about additional mitigation measures for this specific issue.

Fix

Use of Uninitialized Resource

Information Disclosure

Weakness Enumeration

CWE-908

CWE-200

Related Identifiers

ALT-PU-2019-3113

ALT-PU-2019-3136

ALT-PU-2019-3184

ALT-PU-2020-1198

ALT-PU-2020-1421

ALT-PU-2020-1450

ALT-PU-2020-1501

ALT-PU-2020-1714

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2020-00122

CVE-2019-18786

USN-4284-1

USN-4285-1

USN-4287-1

USN-4287-2

Affected Products

Alt Linux

Linux Kernel

Ubuntu

References · 60

• https://osv.dev/vulnerability/CVE-2019-18786 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-18786 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-18786 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4285-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-18786 · Vendor Advisory
• https://patchwork.linuxtv.org/patch/59542 · Patch
• https://ubuntu.com/security/CVE-2019-16229 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-18786 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-18786 · Security Note
• https://ubuntu.com/security/CVE-2019-19947 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4285-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19602 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19252 · Vendor Advisory
• https://usn.ubuntu.com/4287-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4287-1 · Vendor Advisory