Threats Tagged 'cve-2026-59139'
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Threats Tagged 'cve-2026-59139'
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CVE-2026-59139: CWE-125 Out-of-bounds Read in EGOR Data::ReqRep::SharedCVE-2026-59139 0 Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked. The attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap'd segment and never bounded against the arena capacity (req_arena_cap). A local peer that can write the backing file can leave the header valid while poisoning a request slot's offset and length, so receiving the request copies a file-controlled offset and length out of the arena, reading adjacent memory or crashing the process. Join the discussion | CVE Database V5 | 07/21/2026, 19:02:43 UTC Added: 07/21/2026, 19:12:18 UTC |
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