AZL-40306

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Import Source
https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-40306.json
JSON Data
https://api.test.osv.dev/v1/vulns/AZL-40306
Upstream
Published
2022-12-13T16:15:22Z
Modified
2026-04-01T05:13:59.654472Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
CVE-2022-3996 affecting package edk2 for versions less than 20240223gitedc6681206c1-2
Details

If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup.

Policy processing is enabled by passing the -policy' argument to the command line utilities or by calling the X509VERIFYPARAMset1policies()' function.

Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466.

References

Affected packages

Azure Linux:3 / edk2

Package

Name
edk2
Purl
pkg:rpm/azure-linux/edk2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
20240223gitedc6681206c1-2

Database specific

source 
"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-40306.json"