USN-9027-2: Linux kernel (FIPS) vulnerabilities
USN-9027-2
Summary
Yuqi Qiu and Xiang Li discovered that libheif incorrectly handled certain compressed metadata. 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-2026-84384) Yuqi Qiu and Xiang Li discovered that libheif incorrectly handled certain HEIF sequence data. A remote attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 26.04 LTS. (CVE-2026-84446) Yuqi Qiu and Xiang Li discovered that libheif incorrectly handled certain image references. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-84447)
It was discovered that libheif incorrectly handled certain region masks. A local attacker could possibly use this issue to obtain sensitive information or cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-84448)
It was discovered that libheif incorrectly handled certain images. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2026-84449)
Products covered
A separate affected-products list was not included in the collected bulletin.
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 5
Updates
- Published by Ubuntu
The publication date reported by the vendor.
- Added to SecurityAlert
We collected the advisory from the official source.
- Confirmed at the source
Our collector saw this advisory during a later source check.