USN-7963-1: libpng vulnerabilities

USN-7963-1: libpng vulnerabilities

https://ubuntu.com/security/notices/rss.xml / Wed, 01/14/2026 - 19:57
It was discovered that the libpng simplified API incorrectly processed palette PNG images with partial transparency and gamma correction. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause libpng to crash, resulting in a denial of service. (CVE-2025-66293) Petr Simecek, Stanislav Fort and Pavel Kohout discovered that the libpng simplified API incorrectly processed interlaced 16-bit PNGs with 8-bit output format and non-minimal row strides. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause libpng to crash, resulting in a denial of service. (CVE-2026-22695) Cosmin Truta discovered that the libpng simplified API incorrectly handled invalid row strides. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause libpng to crash, resulting in a denial of service. (CVE-2026-22801)

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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.