========================================================================== Ubuntu Security Notice USN-5845-2 February 07, 2023
openssl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Several security issues were fixed in OpenSSL. Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools Details: 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) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: libssl1.0.0 1.0.2g-1ubuntu4.20+esm6 Ubuntu 14.04 ESM: libssl1.0.0 1.0.1f-1ubuntu2.27+esm6 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5845-2 https://ubuntu.com/security/notices/USN-5845-1 CVE-2023-0215, CVE-2023-0286
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