CVE-2022-39842 (Medium) detected in linuxlinux-4.19.236

[mend-bolt-for-github[bot]]

CVE-2022-39842 - Medium Severity Vulnerability

Vulnerable Library - linuxlinux-4.19.236

The Linux Kernel

Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/?wsslib=linux

Found in HEAD commit: a9ef12c01434b7acb272409c3025b43fd5b29138

Found in base branch: master

Vulnerable Source Files (2)

/drivers/video/fbdev/pxa3xx-gcu.c /drivers/video/fbdev/pxa3xx-gcu.c

Vulnerability Details

An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur.

Publish Date: 2022-09-05

URL: CVE-2022-39842

CVSS 3 Score Details (6.1)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: Low - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.linuxkernelcves.com/cves/CVE-2022-39842

Release Date: 2022-09-05

Fix Resolution: v4.9.330,v4.14.295,v4.19.260,v5.4.215,v5.10.145,v5.15.70

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[mend-bolt-for-github[bot]]

:heavy_check_mark: This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.