Source: libio-compress-perl Version: 2.219-2 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for libio-compress-perl. CVE-2026-48959[0]: | IO::Uncompress::Unzip versions before 2.220 for Perl allow CPU | exhaustion via per-byte read loop in fastForward. fastForward() | compares length $offset (the digit count of the offset, 1 to 19) | against the chunk size $c instead of $offset itself, so $c shrinks | from 16 KiB to 1-19 bytes per iteration. Extracting a named entry | from an attacker supplied zip via IO::Uncompress::Unzip->new($zip, | Name => $target) drives a per-byte read loop scaling with the | entry's compressed size, up to the non-Zip64 4 GiB cap. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-48959 https://www.cve.org/CVERecord?id=CVE-2026-48959 [1] https://lists.security.metacpan.org/cve-announce/msg/40434381/ [2] https://github.com/pmqs/IO-Compress/commit/68db44076f4c1a86a2ffe53a958eac6cabaf72e2 Please adjust the affected versions in the BTS as needed. Regards, Salvatore
