Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-52842

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt() KMSAN reported the following uninit-value access issue: ========…

Published May 21, 2024CWE-908EPSS 0.24%

Overview

CVE-2023-52842 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. 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:

virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt()

KMSAN reported the following uninit-value access issue:

=====================================================

BUG: KMSAN: uninit-value in virtio_transport_recv_pkt+0x1dfb/0x26a0 net/vmw_vsock/virtio_transport_common.c:1421

virtio_transport_recv_pkt+0x1dfb/0x26a0 net/vmw_vsock/virtio_transport_common.c:1421

vsock_loopback_work+0x3bb/0x5a0 net/vmw_vsock/vsock_loopback.c:120

process_one_work kernel/workqueue.c:2630 [inline]

process_scheduled_works+0xff6/0x1e60 kernel/workqueue.c:2703

worker_thread+0xeca/0x14d0 kernel/workqueue.c:2784

kthread+0x3cc/0x520 kernel/kthread.c:388

ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147

ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304

Uninit was stored to memory at:

virtio_transport_space_update net/vmw_vsock/virtio_transport_common.c:1274 [inline]

virtio_transport_recv_pkt+0x1ee8/0x26a0 net/vmw_vs

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/0b8906fb48b99e993d6e8a12539f618f4854dd26Refgit.kernel.org/stable/c/34c4effacfc329aeca5635a69fd9e0f6c90b4101Refgit.kernel.org/stable/c/cd12535b97dd7d18cf655ec78ce1cf1f29a576beRefgit.kernel.org/stable/c/0b8906fb48b99e993d6e8a12539f618f4854dd26Refgit.kernel.org/stable/c/34c4effacfc329aeca5635a69fd9e0f6c90b4101Refgit.kernel.org/stable/c/cd12535b97dd7d18cf655ec78ce1cf1f29a576be

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52842?

CVE-2023-52842 is a high-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2023-52842?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52842?

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-2023-52842?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52842 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.

Related HIGH CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999