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CVE details

CVE-2023-0465

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.

Score
5.3 medium
Published
2023-03-28
Links
NVD · cve.org

Affected ports (2)

PortPackageVersionStatusMaintainer
security/linux-c7-openssl-devellinux-c7-openssl-devel1.0.2k_2unaddressedemulation@FreeBSD.org
security/openssl-unsafeopenssl-unsafe1.0.2.20170706unaddressedbrnrd@FreeBSD.org

VuXML

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>linux-c7-openssl-devel</name>
	<range><lt>1.0.2zh</lt></range>
      </package>
      <package>
	<name>openssl-unsafe</name>
	<range><lt>1.0.2zh</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>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.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2023-0465</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2023-0465</url>
    </references>
    <dates>
      <discovery>2023-03-28</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>