CVE-2023-0464 | BDVDB-2026-197847 Detail
OpenSSLOpenSSL
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: network.
Weaknesses#
- CWE-295 Improper Certificate Validation
References#
- https://www.openssl.org/news/secadv/20230322.txt
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2017771e2db3e2b96f89bbe8766c3209f6a99545
- 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://www.couchbase.com/alerts/
- https://www.debian.org/security/2023/dsa-5417
- https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html
- https://security.gentoo.org/glsa/202402-08
- https://security.netapp.com/advisory/ntap-20240621-0006/
- https://security.netapp.com/advisory/ntap-20230406-0006/
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-077170.html
- https://cert-portal.siemens.com/productcert/html/ssa-556635.html
Show all 21
- https://cert-portal.siemens.com/productcert/html/ssa-879734.html
- https://cert-portal.siemens.com/productcert/html/ssa-625862.html
- https://cert-portal.siemens.com/productcert/html/ssa-337522.html
- https://cert-portal.siemens.com/productcert/html/ssa-341067.html
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html
- https://cert-portal.siemens.com/productcert/html/ssa-028723.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.