USN-8135-1: Pillow vulnerabilities

USN-8135-1: Pillow vulnerabilities

https://ubuntu.com/security/notices/rss.xml / Tue, 03/31/2026 - 15:09
It was discovered that Pillow did not correctly handle reading J2K files, which could lead to an out-of-bounds read vulnerability. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2021-25287, CVE-2021-25288) It was discovered that Pillow did not correctly handle certain integer arithmetic, which could lead to a buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2021-25290) It was discovered that Pillow did not correctly perform bounds checking for certain operations. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2021-28675, CVE-2021-28676, CVE-2021-28677) It was discovered that Pillow did not correctly handle certain memory operations. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-44271) It was discovered that Pillow did not correctly sanitize certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2023-50447)

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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.