CVE-2026-47709
Xianrui Dong discovered that libheif had an out-of-bounds read in its HEIF sequence track parser. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-47254) Junyi Liu discovered that libheif had a null pointer dereference in its image tiling interface. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-47709) Calvin Young and Enoch Chow discovered that libheif had an integer overflow in its inline mask size calculation. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. (CVE-2026-47714) Ariel Koren discovered that libheif had an integer underflow in its grid image tile coordinate transform. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. (CVE-2026-48029) It was discovered that libheif had a missing bound check in its HEIF sequence parser, allowing unbounded heap allocation. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-50142)
CSIRTS triage
- What
- libheif has multiple vulnerabilities that could lead to denial of service or information disclosure.
- Who is affected
- Only Ubuntu 26.04 LTS deployments are affected.
- Urgency
- Remediation is urgent due to the potential for denial of service and information disclosure.
- Action
- Update to the latest version of libheif.
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Advisory coverage (1)
- unknownUSN-8526-1: libheif vulnerabilitiesubuntu · 2026-07-09
External references
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