USN-8517-1: ClamAV vulnerabilities | Ubuntu security notices

USN-8493-1: Linux kernel vulnerabilities | Ubuntu security notices

It was discovered that ClamAV incorrectly handled certain PE files. A
remote attacker could possibly use this issue to cause ClamAV to crash,
resulting in a denial of service. (CVE-2026-20213, CVE-2026-20214,
CVE-2026-20217)

It was discovered that ClamAV incorrectly handled certain 7z archive
files. A remote attacker could possibly use this issue to cause ClamAV to
crash, resulting in a denial of service. (CVE-2026-20215)

It was discovered that ClamAV incorrectly handled extraction limits for
certain InstallShield archives. A remote attacker could possibly use this
issue to cause ClamAV to use excessive resources, leading to a denial of
service. (CVE-2026-20216)

It was discovered that ClamAV incorrectly handled certain ALZ…

It was discovered that ClamAV incorrectly handled certain PE files. A
remote attacker could possibly use this issue to cause ClamAV to crash,
resulting in a denial of service. (CVE-2026-20213, CVE-2026-20214,
CVE-2026-20217)

It was discovered that ClamAV incorrectly handled certain 7z archive
files. A remote attacker could possibly use this issue to cause ClamAV to
crash, resulting in a denial of service. (CVE-2026-20215)

It was discovered that ClamAV incorrectly handled extraction limits for
certain InstallShield archives. A remote attacker could possibly use this
issue to cause ClamAV to use excessive resources, leading to a denial of
service. (CVE-2026-20216)

It was discovered that ClamAV incorrectly handled certain ALZ archive
files. A remote attacker could possibly use this issue to cause ClamAV to
crash, resulting in a denial of service. (CVE-2026-20243)

It was discovered that ClamAV incorrectly handled certain DMG files. A
remote attacker could possibly use this issue to cause ClamAV to crash,
resulting in a denial of service. (CVE-2026-20244)

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