MGASA-2026-0500 Updated perl-Imager package fixes security vulnerabilities

Buffer read underflows on 32-bit sizet systems decoding EXIF data. CVE-2026-73638 Palette off-by-one discloses uninitialized heap memory. CVE-2026-93018 TGA reader: signed colourmaplength causes process-killing allocator abort. CVE-2026-93019 Unvalidated rawdatachannels can cause incorrect memory...