Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-13023.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-13023
Upstream
Published
2023-01-17T21:15:10Z
Modified
2026-04-01T05:07:25.938254Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
CVE-2021-36647 affecting package fluent-bit for versions less than 2.0.9-1
Details

Use of a Broken or Risky Cryptographic Algorithm in the function mbedtlsmpiexp_mod() in lignum.c in Mbed TLS Mbed TLS all versions before 3.0.0, 2.27.0 or 2.16.11 allows attackers with access to precise enough timing and memory access information (typically an untrusted operating system attacking a secure enclave such as SGX or the TrustZone secure world) to recover the private keys used in RSA.

References

Affected packages

Azure Linux:2 / fluent-bit

Package

Name
fluent-bit
Purl
pkg:rpm/azure-linux/fluent-bit

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.0.9-1

Database specific

source
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-13023.json"