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CVE-2024-26875

6.4 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: media: pvrusb2: fix uaf in pvr2_context_set_notify [Syzbot reported] BUG: KASAN: slab-use-after-free in pvr2_context_set_notify…

Published Apr 17, 2024CWE-416EPSS 0.25%

Overview

CVE-2024-26875 is a medium-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 6.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

media: pvrusb2: fix uaf in pvr2_context_set_notify

[Syzbot reported]

BUG: KASAN: slab-use-after-free in pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35

Read of size 4 at addr ffff888113aeb0d8 by task kworker/1:1/26

CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.8.0-rc1-syzkaller-00046-gf1a27f081c1f #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024

Workqueue: usb_hub_wq hub_event

Call Trace:

<TASK>

__dump_stack lib/dump_stack.c:88 [inline]

dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106

print_address_description mm/kasan/report.c:377 [inline]

print_report+0xc4/0x620 mm/kasan/report.c:488

kasan_report+0xda/0x110 mm/kasan/report.c:601

pvr2_context_set_notify+0x2c4/0x310 drivers/media/usb/pvrusb2/pvrusb2-context.c:35

pvr2_context_notify drivers/media/usb/pvrusb2/pvrusb2-context.c:95 [inline]

pvr2_context_disconnect+0x94/0xb0 drivers/me

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01eeRefgit.kernel.org/stable/c/3a1ec89708d2e57e2712f46241282961b1a7a475Refgit.kernel.org/stable/c/40cd818fae875c424a8335009db33c7b5a07de3aRefgit.kernel.org/stable/c/8e60b99f6b7ccb3badeb512f5eb613ad45904592Refgit.kernel.org/stable/c/ab896d93fd6a2cd1afeb034c3cc9226cb499209fRefgit.kernel.org/stable/c/d29ed08964cec8b9729bc55c7bb23f679d7a18fbRefgit.kernel.org/stable/c/eaa410e05bdf562c90b23cdf2d9327f9c4625e16Refgit.kernel.org/stable/c/eb6e9dce979c08210ff7249e5e0eceb8991bfcd7Refgit.kernel.org/stable/c/ed8000e1e8e9684ab6c30cf2b526c0cea039929cRefgit.kernel.org/stable/c/0a0b79ea55de8514e1750884e5fec77f9fdd01ee

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26875?

CVE-2024-26875 is a medium-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 6.4 (MEDIUM).

How severe is CVE-2024-26875?

This vulnerability has a CVSS 3.1 base score of 6.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26875?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-26875?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26875 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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