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CVE-2024-50169

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: vsock: Update rx_bytes on read_skb() Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt() calls are balanc…

Published Nov 7, 2024EPSS 0.21%

Overview

CVE-2024-50169 is a medium-severity vulnerability. It was published on November 7, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, 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:

vsock: Update rx_bytes on read_skb()

Make sure virtio_transport_inc_rx_pkt() and virtio_transport_dec_rx_pkt()

calls are balanced (i.e. virtio_vsock_sock::rx_bytes doesn't lie) after

vsock_transport::read_skb().

While here, also inform the peer that we've freed up space and it has more

credit.

Failing to update rx_bytes after packet is dequeued leads to a warning on

SOCK_STREAM recv():

[ 233.396654] rx_queue is empty, but rx_bytes is non-zero

[ 233.396702] WARNING: CPU: 11 PID: 40601 at net/vmw_vsock/virtio_transport_common.c:589

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/3543152f2d330141d9394d28855cb90b860091d2Refgit.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9Refgit.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829

How CyberStrike helps

Frequently asked questions

What is CVE-2024-50169?

CVE-2024-50169 is a medium-severity vulnerability. It was published on November 7, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50169?

This vulnerability has a CVSS 3.1 base score of 5.5, 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-2024-50169?

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-2024-50169?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-50169 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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