ClamAV InstallShield File Format Processing Resource Exhaustion Vulnerability

This update for clamav fixes the following issues - CVE-2026-20213: PE file format parser could allow an unauthenticated, remote attacker to cause a denial of service (bsc#1270107). - CVE-2026-20214: FSG file format parser could allow an unauthenticated, remote attacker to cause a denial of service (bsc#1270085). - CVE-2026-20215: 7z file format parser could allow an unauthenticated, remote attacker to cause a denial of service (bsc#1270088). - CVE-2026-20216: InstallShield file format parser could allow an unauthenticated, remote attacker to cause a denial of service (bsc#1270089). - CVE-2026-20217: PESpin file format parser could allow an unauthenticated, remote attacker to cause a denial of service (bsc#1270091). - CVE-2026-20243: ALZ file format parser could allow an unauthenticated, remote attacker to cause a denial of service (bsc#1270092). - CVE-2026-20244: DMG file format parser could allow an unauthenticated, remote attacker to cause a denial of service on 32-bit platforms only (bsc#1270106). - CVE-2026-41676: rust-openssl: `Deriver:derive` and `PkeyCtxRef:derive` can overflow short buffers on OpenSSL 1.1.1 (bsc#1270138). Changes for clamav: - update to 1.5.3: * Hardened clamscan, clamdscan, and clamonacc quarantine actions against time-of-check/time-of-use races that could redirect copied, moved, or removed files under unsafe quarantine directory configurations. * Raised the minimum required CMake version to 3.17 to fix Linux builds with libcurl v8.21.0 when linking static library dependencies. * Metadata preclass scans now run before the final scan verdict. * ClamOnAcc: Fixed errors when recursively excluded paths are children of an included path. * ClamOnAcc: Fixed hash bucket list corruption when two watched paths collide in the same bucket.

Where it's fixed