Linux Kernel up to 5.16.10 vsock_connect state issue

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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.16.10. It has been rated as problematic. Affected by this vulnerability is the function vsock_connect. This manipulation causes state issue. The identification of this vulnerability is CVE-2022-48786. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.16.10 and classified as problematic. Affected by this vulnerability is the function vsock_connect. The manipulation with an unknown input leads to a state issue vulnerability. The CWE definition for the vulnerability is CWE-371. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: vsock: remove vsock from connected table when connect is interrupted by a signal vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list. Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add. Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2022-48786 since 07/16/2024. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 209785 (EulerOS Virtualization 2.12.0 : kernel (EulerOS-SA-2024-2781)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.303, 4.14.268, 4.19.231, 5.4.181, 5.10.102, 5.15.25 or 5.16.11 eliminates this vulnerability. Applying the patch 0bb88f3f7e8d/e3b3939fd137/2910bcb9f675/5f326fe2aef4/87cd1bbd6677/787468ee7a43/addd62a8cb6f/b9208492fcae is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (209785). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: State issue
CWE: CWE-371
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 209785
Nessus Name: EulerOS Virtualization 2.12.0 : kernel (EulerOS-SA-2024-2781)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.303/4.14.268/4.19.231/5.4.181/5.10.102/5.15.25/5.16.11
Patch: 0bb88f3f7e8d/e3b3939fd137/2910bcb9f675/5f326fe2aef4/87cd1bbd6677/787468ee7a43/addd62a8cb6f/b9208492fcae

Timelineinfo

07/16/2024 🔍
07/16/2024 +0 days 🔍
07/16/2024 +0 days 🔍
10/03/2025 +444 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-48786 (🔍)
GCVE (CVE): GCVE-0-2022-48786
GCVE (VulDB): GCVE-100-271579

Entryinfo

Created: 07/16/2024 13:59
Updated: 10/03/2025 19:03
Changes: 07/16/2024 13:59 (57), 10/28/2024 10:18 (3), 10/03/2025 19:03 (11)
Complete: 🔍
Cache ID: 216::103

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