Threats Tagged 'cve-2026-56391'
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Threats Tagged 'cve-2026-56391'
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CVE-2026-56391: CWE-125 Out-of-bounds Read in GNU coreutilsCVE-2026-56391 0 GNU coreutils uniq is vulnerable to an out‑of‑bounds read due to incorrect handling of multibyte input when the -w (--check-chars) option is used. The find_field() function miscalculates the byte length of characters by repeatedly processing a fixed pointer instead of advancing through the input, resulting in an inflated length value. This incorrect length is later used in a memcmp operation, causing reads beyond the allocated buffer when processing crafted multibyte input. When running GNU coreutils uniq with attacker-provided arguments, this behavior leads to a crash and potential adjacent heap memory exposure. This issue has been fixed in the commit d64e35a8a4c0e4608321433e0d84d917e4e36371. Join the discussion | CVE Database V5 | 07/24/2026, 07:44:45 UTC Added: 07/24/2026, 08:22:51 UTC |
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