CVE-2023-0465
Invalid certificate policies in leaf certificates are silently ignored
- Published
- Updated
- Reserved
- Assigned by
- openssl
Description
Applications that use a non-default option when verifying certificates may be vulnerable to an attack from a malicious CA to circumvent certain checks. Invalid certificate policies in leaf certificates are silently ignored by OpenSSL and other certificate policy checks are skipped for that certificate. A malicious CA could use this to deliberately assert invalid certificate policies in order to circumvent policy checking on the certificate altogether. 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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
- improper certificate validation
- CWE-295 Improper Certificate Validation (opens in a new tab)All about CWE-295 and its CVEs
Affected products
References (17)
- OpenSSL Advisory (opens in a new tab)vendor-advisoryx_transferred
- 3.1.1 git commit (opens in a new tab)patchx_transferred
- 3.0.9 git commit (opens in a new tab)patchx_transferred
- 1.1.1u git commit (opens in a new tab)patchx_transferred
- 1.0.2zh patch (premium) (opens in a new tab)patchx_transferred
- https://security.netapp.com/advisory/ntap-20230414-0001/ (opens in a new tab)x_transferred
- https://www.debian.org/security/2023/dsa-5417 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html (opens in a new tab)x_transferred
- https://security.gentoo.org/glsa/202402-08 (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-556635.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-879734.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-625862.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-337522.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-341067.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-0465)Record last updated .