VDB-145221 · CVE-2019-18807 · Nessus 246840

Linux Kernel up to 5.3.4 sja1105_spi.c sja1105_static_config_upload resource consumption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 5.3.4. Affected is the function sja1105_static_config_upload of the file drivers/net/dsa/sja1105/sja1105_spi.c. Performing a manipulation results in resource consumption. This vulnerability is identified as CVE-2019-18807. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.3.4 (Operating System). It has been classified as problematic. This affects the function sja1105_static_config_upload of the file drivers/net/dsa/sja1105/sja1105_spi.c. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

Two memory leaks in the sja1105_static_config_upload() function in drivers/net/dsa/sja1105/sja1105_spi.c in the Linux kernel before 5.3.5 allow attackers to cause a denial of service (memory consumption) by triggering static_config_buf_prepare_for_upload() or sja1105_inhibit_tx() failures, aka CID-68501df92d11.

The weakness was released 11/07/2019. This vulnerability is uniquely identified as CVE-2019-18807 since 11/07/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 246840 (Linux Distros Unpatched Vulnerability : CVE-2019-18807), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.3.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (246840). Entries connected to this vulnerability are available at VDB-145225, VDB-145224, VDB-145223 and VDB-145222. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 246840
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-18807

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.3.5
Patch: git.kernel.org

Timelineinfo

11/07/2019 🔍
11/07/2019 +0 days 🔍
11/08/2019 +1 days 🔍
08/10/2025 +2102 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: cdn.kernel.org
Status: Confirmed

CVE: CVE-2019-18807 (🔍)
GCVE (CVE): GCVE-0-2019-18807
GCVE (VulDB): GCVE-100-145221
See also: 🔍

Entryinfo

Created: 11/08/2019 11:21
Updated: 08/10/2025 19:36
Changes: 11/08/2019 11:21 (40), 11/08/2019 11:26 (18), 02/05/2024 14:55 (5), 08/10/2025 19:36 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.