Linux Kernel ctxt-info-gen3.c iwl_pcie_ctxt_info_gen3_init resource consumption

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel. Impacted is the function iwl_pcie_ctxt_info_gen3_init of the file drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c. Executing a manipulation can lead to resource consumption. This vulnerability is handled as CVE-2019-19059. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Linux Kernel (Operating System) (the affected version unknown) and classified as problematic. This vulnerability affects the function iwl_pcie_ctxt_info_gen3_init of the file drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.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. CVE summarizes:

Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c in the Linux kernel through 5.3.11 allow attackers to cause a denial of service (memory consumption) by triggering iwl_pcie_init_fw_sec() or dma_alloc_coherent() failures, aka CID-0f4f199443fa.

The weakness was released 11/18/2019. This vulnerability was named CVE-2019-19059 since 11/18/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/23/2024). The MITRE ATT&CK project declares the attack technique as T1499.

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

Entries connected to this vulnerability are available at VDB-145880, VDB-145879, VDB-145878 and VDB-145877. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion