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OpenAdvisories
High USN-5845-2 2 CVEs

openssl vulnerabilities

Published Feb 7, 2023 · Updated Jun 29, 2026

Summary

USN-5845-1 fixed several vulnerabilities in OpenSSL. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

David Benjamin discovered that OpenSSL incorrectly handled X.400 address
processing. A remote attacker could possibly use this issue to read
arbitrary memory contents or cause OpenSSL to crash, resulting in a denial
of service. (CVE-2023-0286)

Octavio Galland and Marcel Böhme discovered that OpenSSL incorrectly
handled streaming ASN.1 data. A remote attacker could use this issue to
cause OpenSSL to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2023-0215)

Fixed packages 2

ReleasePackageFixed in
Ubuntu · Pro 14.04 LTS Pro:14.04:LTS openssl 1.0.1f-1ubuntu2.27+esm6
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS openssl 1.0.2g-1ubuntu4.20+esm6

Vulnerabilities 2

  • High 7.5

    Use-after-free following BIO_new_NDEF

    The public API function BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL to support the SMIME, CMS and PKCS7 streaming capabilities, but may also be called directly by end user applications.…

  • High 7.4
    CVE-2023-0286 Public exploit EPSS 68%

    X.400 address type confusion in X.509 GeneralName

    There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address fiel…

References

  • report
    https://ubuntu.com/security/CVE-2023-0215
  • report
    https://ubuntu.com/security/CVE-2023-0286