CVE-2023-0465

Summary

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.

Impact & exploitability

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1dd43e0709fece299b15208f36cc7c76209ba0bb ↗

Additional information

• NVD record
• https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1dd43e0709fece299b15208f36cc7c76209ba0bbPatch
• https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=b013765abfa80036dc779dd0e50602c57bb3bf95Patch
• https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=facfb1ab745646e97a1920977ae4a9965ea61d5cPatch
• https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=10325176f3d3e98c6e2b3bf5ab1e3b334de6947a
• https://lists.debian.org/debian-lts-announce/2023/06/msg00011.html
• https://security.gentoo.org/glsa/202402-08
• https://security.netapp.com/advisory/ntap-20230414-0001/
• https://www.debian.org/security/2023/dsa-5417