========================================================================== Ubuntu Security Notice USN-5051-2 August 26, 2021
openssl vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: OpenSSL could be made to crash or expose sensitive information if it received a specially crafted ASN.1 string. Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools Details: USN-5051-1 fixed a vulnerability in OpenSSL. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Ingo Schwarze discovered that OpenSSL incorrectly handled certain ASN.1 strings. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2021-3712) 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+esm1 Ubuntu 14.04 ESM: libssl1.0.0 1.0.1f-1ubuntu2.27+esm3 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5051-2 https://ubuntu.com/security/notices/USN-5051-1 CVE-2021-3712
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