Improper Locking Affecting openssl package, versions <3.0.2-0ubuntu1.9
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Test your applications- Snyk ID SNYK-UBUNTU2204-OPENSSL-3167951
- published 13 Dec 2022
- disclosed 13 Dec 2022
Introduced: 13 Dec 2022
CVE-2022-3996 Open this link in a new tabHow to fix?
Upgrade Ubuntu:22.04 openssl to version 3.0.2-0ubuntu1.9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by Ubuntu.
See How to fix? for Ubuntu:22.04 relevant fixed versions and status.
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 X509_VERIFY_PARAM_set1_policies()' function.
Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466.