Executive Summary

Informations
Name CVE-2024-50169 First vendor Publication 2024-11-07
Vendor Cve Last vendor Modification 2024-11-22

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50169

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8
Os 3640

Sources (Detail)

https://git.kernel.org/stable/c/3543152f2d330141d9394d28855cb90b860091d2
https://git.kernel.org/stable/c/66cd51de31c682a311c2fa25c580b7ea45859dd9
https://git.kernel.org/stable/c/e5ca2b98090b4bb1c393088c724af6c37812a829
Source Url

Alert History

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Date Informations
2024-11-23 00:22:58
  • Multiple Updates
2024-11-22 21:21:53
  • Multiple Updates
2024-11-09 00:27:30
  • Multiple Updates
2024-11-07 13:27:34
  • First insertion