CVE-2023-52445 (High) detected in linux-stable-rtv4.1.33

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

CVE-2023-52445 - High Severity Vulnerability

Vulnerable Library - linux-stable-rtv4.1.33

Julia Cartwright's fork of linux-stable-rt.git

Library home page: https://git.kernel.org/pub/scm/linux/kernel/git/julia/linux-stable-rt.git

Found in base branch: master

Vulnerable Source Files (2)

/drivers/media/usb/pvrusb2/pvrusb2-context.c /drivers/media/usb/pvrusb2/pvrusb2-context.c

Vulnerability Details

In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix use after free on context disconnection Upon module load, a kthread is created targeting the pvr2_context_thread_func function, which may call pvr2_context_destroy and thus call kfree() on the context object. However, that might happen before the usb hub_event handler is able to notify the driver. This patch adds a sanity check before the invalid read reported by syzbot, within the context disconnection call stack.

Publish Date: 2024-02-22

URL: CVE-2023-52445

CVSS 3 Score Details (7.8)

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.linuxkernelcves.com/cves/CVE-2023-52445

Release Date: 2024-02-22

Fix Resolution: v4.19.306,v5.4.268,v5.10.209,v5.15.148,v6.1.75,v6.6.14,v6.7.2

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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.

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

:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.