CVE-2023-0464

Description

A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use of computational resources, leading to a denial-of-service (DoS) attack on affected systems. Policy processing is disabled by default but can be enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function.

References

https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-11

https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-10

https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-06

https://www.cisa.gov/news-events/ics-advisories/icsa-24-165-04

https://cert-portal.siemens.com/productcert/html/ssa-556635.html

https://www.openssl.org/news/secadv/20230322.txt

https://www.debian.org/security/2023/dsa-5417

https://www.couchbase.com/alerts/

https://security.netapp.com/advisory/ntap-20240621-0006/

https://security.gentoo.org/glsa/202402-08

https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=959c59c7a0164117e7f8366466a32bb1f8d77ff1

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=879f7080d7e141f415c79eaa3a8ac4a3dad0348b

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2dcd4f1e3115f38cefa43e3efbe9b801c27e642e

https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2017771e2db3e2b96f89bbe8766c3209f6a99545

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3