USN-8628-1: libgit2 vulnerabilities

USN-8628-1: libgit2 vulnerabilities

https://ubuntu.com/security/notices/rss.xml / Thu, 08/13/2026 - 04:26
It was discovered that libgit2 incorrectly handled the Git Smart Protocol. A remote attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-10128) It was discovered that libgit2 incorrectly handled empty packet lines in the Git Smart Protocol. A remote 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-2016-10129) It was discovered that libgit2 incorrectly handled error reporting in the HTTP transport. A remote attacker could possibly use this issue to spoof servers. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-10130) It was discovered that libgit2 incorrectly handled certain crafted "ng" packets. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. (CVE-2018-15501) Krishna Ram Prakash R and Vivek Parikh discovered that libgit2 incorrectly handled certain repository index files. A local attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-8098) Krishna Ram Prakash R and Vivek Parikh discovered that libgit2 incorrectly handled certain repository index files. A local attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. (CVE-2018-8099) Michał Majchrowicz and Marcin Wyczechowski discovered that libgit2 incorrectly handled submodule paths. A remote attacker could possibly use this issue to write files outside the working tree. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-53584) Michał Majchrowicz and Marcin Wyczechowski discovered that libgit2 incorrectly handled delta object result-size headers. A remote attacker could possibly use this issue to cause libgit2 to consume excessive memory, leading to a denial of service. (CVE-2026-53585) Thai Son Dinh discovered that libgit2 incorrectly handled HTTP redirects. A remote attacker could possibly use this issue to leak credentials to an offsite redirect target. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-53586) It was discovered that libgit2 incorrectly handled certain capability buffers in the smart protocol. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-53587)

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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.