Linux Kernel 6.2 drivers/tty/n_gsm.c sleeping denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel 6.2 and classified as problematic. Impacted is the function sleeping of the file drivers/tty/n_gsm.c. Performing a manipulation results in denial of service. This vulnerability is known as CVE-2023-31082. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in Linux Kernel 6.2 (Operating System). It has been classified as problematic. This affects the function sleeping of the file drivers/tty/n_gsm.c. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

An issue was discovered in drivers/tty/n_gsm.c in the Linux kernel 6.2. There is a sleeping function called from an invalid context in gsmld_write, which will block the kernel.

The weakness was published 04/24/2023. The advisory is shared at lore.kernel.org. This vulnerability is uniquely identified as CVE-2023-31082 since 04/24/2023. Technical details and a public exploit are known.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 276493 (EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-2447)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (276493). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.3
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: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 276493
Nessus Name: EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-2447)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/24/2023 🔍
04/24/2023 +0 days 🔍
04/24/2023 +0 days 🔍
11/23/2025 +944 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lore.kernel.org
Status: Confirmed

CVE: CVE-2023-31082 (🔍)
GCVE (CVE): GCVE-0-2023-31082
GCVE (VulDB): GCVE-100-227265
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/24/2023 10:35
Updated: 11/23/2025 08:52
Changes: 04/24/2023 10:35 (43), 05/18/2023 09:31 (11), 11/23/2025 08:52 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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