Multiple vulnerabilities in nomad



| Updated: 2022-02-22
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-44716
CVE-2021-44717
CWE-ID CWE-20
CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Nomad
Server applications / Virtualization software

Vendor HashiCorp

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU58824

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-44716

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nomad: 1.0.0 - 1.2.2

CPE2.3 External links

https://github.com/hashicorp/nomad/releases/tag/v1.2.3
https://github.com/hashicorp/nomad/releases/tag/v1.0.15
https://github.com/hashicorp/nomad/releases/tag/v1.1.9


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource exhaustion

EUVDB-ID: #VU59042

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-44717

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when processing HTTP/2 requests. A remote attacker can send multiple HTTP/2 requests to the server and exhaust all available memory resources.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Nomad: 1.0.0 - 1.2.2

CPE2.3 External links

https://github.com/hashicorp/nomad/releases/tag/v1.2.3
https://github.com/hashicorp/nomad/releases/tag/v1.0.15
https://github.com/hashicorp/nomad/releases/tag/v1.1.9


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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