CVE-2023-0216

Invalid pointer dereference in d2i_PKCS7 functions

Description

An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. The result of the dereference is an application crash which could lead to a denial of service attack. The TLS implementation in OpenSSL does not call this function however third party applications might call these functions on untrusted data.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.78% Top 30%
Vendor Advisory openssl.org Vendor Advisory openssl.org
Affected: OpenSSL OpenSSL
Published at:
Updated at:

References

Link Tags
https://www.openssl.org/news/secadv/20230207.txt vendor advisory
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=934a04f0e775309cadbef0aa6b9692e1b12a76c6 patch vendor advisory
https://security.gentoo.org/glsa/202402-08

Frequently Asked Questions

What is the severity of CVE-2023-0216?
CVE-2023-0216 has been scored as a high severity vulnerability.
How to fix CVE-2023-0216?
To fix CVE-2023-0216, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-0216 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-0216 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-0216?
CVE-2023-0216 affects OpenSSL OpenSSL.
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