CVE Vulnerability

CVE-2022-3996

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 either `X509_VERIFY_PARAM_add0_policy()' or `X509_VERIFY_PARAM_set1_policies()' functions.

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/openssl/openssl/commit/7725e7bfe6f2ce8146b6552b44e0d226be7638e7 Patch Third Party Advisory
https://www.openssl.org/news/secadv/20221213.txt Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
Information

Published : 2022-12-13 04:15

Updated : 2022-12-15 05:46

NVD link : CVE-2022-3996

Mitre link : CVE-2022-3996

Products Affected
No products.
CWE
CWE-667