Threats Tagged 'osec-2026-18'
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Threats Tagged 'osec-2026-18'
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An integer overflow vulnerability in OCaml's Marshal deserialization logic allows crafted serialized objects to bypass bounds checks, leading to out-of-heap reads. This can cause heap memory disclosure or denial of service via crashes. The flaw exists in the length validation of the deserializer, where an unsigned 64-bit addition can wrap, causing pointer calculations to underflow and bypass safety checks. The vulnerability affects multiple OCaml versions prior to 5.5.1 and was fixed in OCaml 5.5.1. Join the discussion | GCVE Database | 09/10/2026, 10:00:00 UTC Added: 09/10/2026, 13:23:37 UTC |
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