Linux Kernel up to 5.3.3 main.c nfp_flower_spawn_phy_reprs resource consumption

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.3.3 and classified as problematic. This issue affects the function nfp_flower_spawn_phy_reprs of the file drivers/net/ethernet/netronome/nfp/flower/main.c. This manipulation causes resource consumption. This vulnerability is tracked as CVE-2019-19080. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.3.3 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function nfp_flower_spawn_phy_reprs of the file drivers/net/ethernet/netronome/nfp/flower/main.c. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

Four memory leaks in the nfp_flower_spawn_phy_reprs() function in drivers/net/ethernet/netronome/nfp/flower/main.c in the Linux kernel before 5.3.4 allow attackers to cause a denial of service (memory consumption), aka CID-8572cea1461a.

The weakness was disclosed 11/18/2019. This vulnerability is known as CVE-2019-19080 since 11/18/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 222868 (Linux Distros Unpatched Vulnerability : CVE-2019-19080), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.3.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (222868). The entries VDB-145900, VDB-145899, VDB-145898 and VDB-145896 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.3.0
• 5.3.1
• 5.3.2
• 5.3.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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

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