USN-8128-1: CryptX vulnerabilities

USN-8128-1: CryptX vulnerabilities

https://ubuntu.com/security/notices/rss.xml / Thu, 03/26/2026 - 20:08
It was discovered that CryptX did not verify authentication tags while performing GCM and ChaCha20-Poly1305 decryption. An attacker could possibly use this issue to cause CryptX to accept modified ciphertext, leading to data integrity violations or authentication bypass. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-25099) It was discovered that CryptX included a version of the tomcrypt library that was susceptible to malformed unicode handling. An attacker could possibly use this issue to cause unexpected behavior or incorrect processing of crafted input. This issue only affected Ubuntu 18.04 LTS. (CVE-2025-40912) It was discovered that CryptX included a version of the libtommath library that was susceptible to an integer overflow. An attacker could possibly use this issue to cause memory corruption or a denial of service. (CVE-2025-40914)

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Kenya Education Network CERT(KENET-CERT) is a Cybersecurity Emergency Response Team and Co-ordination Center operated by the National Research and Education Network of Kenya. KENET-CERT coordination center promotes awareness on cybersecurity incidences as well as coordinates and assists member institutions in responding effectively to cyber security threats and incidences. KENET-CERT works closely with Kenya's National CIRT coordination center (CIRT/CC) as a sector CIRT for the academic institutions. KENET promotes use of ICT in Teaching, Learning and Research in Higher Education Institutions in Kenya. KENET aims to interconnect all the Universities, Tertiary and Research Institutions in Kenya by setting up a cost effective and sustainable private network with high speed access to the global Internet. KENET also facilitates electronic communication among students and faculties in member institutions, share learning and teaching resources by collaboration in Research and Development of Educational content.