CVE-2023-6337
published 2023-12-08CVE-2023-6337: HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large…
PriorityP339high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.79%
51.7th percentile
HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.
Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| github.com | hashicorp_vault | >= 1.12.0 < 1.13.12 | 1.13.12 |
| github.com | hashicorp_vault | >= 1.14.0 < 1.14.8 | 1.14.8 |
| github.com | hashicorp_vault | >= 1.15.0 < 1.15.4 | 1.15.4 |
| hashicorp | vault | <= 1.12.0 | — |
| hashicorp | vault | >= 1.12.0 < 1.15.4 | 1.15.4 |
| hashicorp | vault | >= 1.13.0 < 1.13.12 | 1.13.12 |
| hashicorp | vault | >= 1.14.0 < 1.14.8 | 1.14.8 |
| hashicorp | vault | >= 1.15.0 < 1.15.4 | 1.15.4 |
| hashicorp | vault_enterprise | >= 1.12.0 < 1.15.4 | 1.15.4 |
| msrc | azl3_cert-manager_1.11.2-8_on_azure_linux_3.0 | — | — |
| msrc | azl3_cert-manager_1.12.12-1_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_cert-manager_1.11.2-22_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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OSV
Denial of service via memory exhaustion in github.com/hashicorp/vault
osv·2024-01-03
CVE-2023-6337 Denial of service via memory exhaustion in github.com/hashicorp/vault
Denial of service via memory exhaustion in github.com/hashicorp/vault
Unauthenticated and authenticated HTTP requests from a client will be attempted to be mapped to memory. Large requests may result in the exhaustion of available memory on the host, which may cause crashes and denial of service.
GHSA
Memory exhaustion in HashiCorp Vault
ghsa·2023-12-09
CVE-2023-6337 [HIGH] CWE-770 Memory exhaustion in HashiCorp Vault
Memory exhaustion in HashiCorp Vault
HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.
Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
OSV
Memory exhaustion in HashiCorp Vault
osv·2023-12-09
CVE-2023-6337 [HIGH] Memory exhaustion in HashiCorp Vault
Memory exhaustion in HashiCorp Vault
HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.
Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
Microsoft
Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests
vendor_msrc·2023-12-12·CVSS 7.5
CVE-2023-6337 [HIGH] CWE-770 Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests
Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
HashiCorp: HashiCorp
Customer Action Required: Yes
Red Hat
hashicorp-vault: denial of service through memory exhaustion
vendor_redhat·2023-12-08·CVSS 7.5
CVE-2023-6337 [HIGH] CWE-770 hashicorp-vault: denial of service through memory exhaustion
hashicorp-vault: denial of service through memory exhaustion
HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.
Fixed in Vault 1.15.4, 1.14.8, 1.13.12.
A flaw was found in HashiCorp Vault and Vault Enterprise 1.12.0. When handling large HTTP requests from a client, Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.
Statement: Red Hat is not affected by this vulnerability.
Package: openshift-pipelin
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://discuss.hashicorp.com/t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741https://security.netapp.com/advisory/ntap-20240112-0006/https://discuss.hashicorp.com/t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741https://security.netapp.com/advisory/ntap-20240112-0006/
2023-12-08
Published