========================================================================== Ubuntu Security Notice USN-6622-1 February 05, 2024
openssl vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: Several security issues were fixed in OpenSSL. Software Description: - openssl: Secure Socket Layer (SSL) cryptographic library and tools Details: David Benjamin discovered that OpenSSL incorrectly handled excessively long X9.42 DH keys. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, leading to a denial of service. (CVE-2023-5678) Sverker Eriksson discovered that OpenSSL incorrectly handled POLY1304 MAC on the PowerPC architecture. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-6129) It was discovered that OpenSSL incorrectly handled excessively long RSA public keys. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.04. (CVE-2023-6237) Bahaa Naamneh discovered that OpenSSL incorrectly handled certain malformed PKCS12 files. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2024-0727) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10: libssl3 3.0.10-1ubuntu2.2 Ubuntu 22.04 LTS: libssl3 3.0.2-0ubuntu1.14 Ubuntu 20.04 LTS: libssl1.1 1.1.1f-1ubuntu2.21 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6622-1 CVE-2023-5678, CVE-2023-6129, CVE-2023-6237, CVE-2024-0727 Package Information: https://launchpad.net/ubuntu/+source/openssl/3.0.10-1ubuntu2.2 https://launchpad.net/ubuntu/+source/openssl/3.0.2-0ubuntu1.14 https://launchpad.net/ubuntu/+source/openssl/1.1.1f-1ubuntu2.21
OpenPGP_signature.asc
Description: OpenPGP digital signature
