Linux Kernel up to 5.3.11 crypto_user_stat.c crypto_reportstat resource consumption

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.3.11. The impacted element is the function crypto_reportstat of the file crypto/crypto_user_stat.c. This manipulation causes resource consumption. This vulnerability is tracked as CVE-2019-19050. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.3.11 (Operating System) and classified as problematic. Affected by this vulnerability is the function crypto_reportstat of the file crypto/crypto_user_stat.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:

A memory leak in the crypto_reportstat() function in crypto/crypto_user_stat.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering crypto_reportstat_alg() failures, aka CID-c03b04dcdba1.

The weakness was disclosed 11/18/2019. This vulnerability is known as CVE-2019-19050 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 of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/23/2024). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

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

The entries VDB-145871, VDB-145870, VDB-145869 and VDB-145868 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.3.0
• 5.3.1
• 5.3.2
• 5.3.3
• 5.3.4
• 5.3.5
• 5.3.6
• 5.3.7
• 5.3.8
• 5.3.9
• 5.3.10
• 5.3.11

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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