HashiCorp Nomad/Nomad Enterprise prior 1.2.16/1.3.9/1.4.4 Compressed Artifact Stanza Source data amplification

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in HashiCorp Nomad and Nomad Enterprise. Affected by this issue is some unknown functionality of the component Compressed Artifact Stanza Source Handler. The manipulation leads to data amplification. This vulnerability is documented as CVE-2023-0821. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in HashiCorp Nomad and Nomad Enterprise. This issue affects some unknown functionality of the component Compressed Artifact Stanza Source Handler. The manipulation with an unknown input leads to a data amplification vulnerability. Using CWE to declare the problem leads to CWE-409. The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output. Impacted is availability. The summary by CVE is:

HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.

The weakness was released 02/17/2023. The advisory is shared at discuss.hashicorp.com. The identification of this vulnerability is CVE-2023-0821 since 02/13/2023. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 260718 (Linux Distros Unpatched Vulnerability : CVE-2023-0821), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.2.16, 1.3.9 or 1.4.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (260718). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (HashiCorp Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Data amplification
CWE: CWE-409 / 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: 260718
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-0821

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nomad/Nomad Enterprise 1.2.16/1.3.9/1.4.4

Timelineinfo

02/13/2023 🔍
02/17/2023 +4 days 🔍
02/17/2023 +0 days 🔍
09/03/2025 +929 days 🔍

Sourcesinfo

Advisory: discuss.hashicorp.com
Status: Confirmed

CVE: CVE-2023-0821 (🔍)
GCVE (CVE): GCVE-0-2023-0821
GCVE (VulDB): GCVE-100-221321

Entryinfo

Created: 02/17/2023 08:58
Updated: 09/03/2025 18:26
Changes: 02/17/2023 08:58 (48), 09/03/2025 18:26 (17)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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