π‘οΈ Sentinel: [MEDIUM] Fix integer overflow in readline input validation - #284
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β¦idation λνν ν둬ννΈ μ λ ₯κ° κ²μ¦ μ 무μ ν κΈΈμ΄λ₯Ό νμ©νλ μ κ·μμ μ¬μ©νμ¬ λ°μν μ μλ Integer Overflow μ·¨μ½μ μ μμ νμ΅λλ€. μ κ·μμ μ격νκ² μ ννμ¬ λ³΄μμ κ°ννμ΅λλ€.
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| for (attempt in seq_len(3)) { | ||
| n <- readline(prompt = "Is it correct? (1: Yes 2: No) : ") | ||
| if (grepl("^[0-9]+$", n)) { | ||
| if (grepl("^[12]$", n)) { |
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π Info: Stricter regex changes retry-loop behavior on invalid input
^[0-9]+$ accepted any digit string (e.g. "3", "0") and returned immediately, so an out-of-range answer triggered a prompt stop at once. ^[12]$ now rejects those, giving the user up to 3 retries before failing. Minor behavior change, consistent with the fix intent.
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π¨ Severity: MEDIUM
π‘ Vulnerability:
readlineμΌλ‘ μ¬μ©μ μ λ ₯μ λ°μ λ^[0-9]+$μ κ·μμ μ¬μ©νλ©΄, λ§€μ° ν° μ«μκ° μ λ ₯λμ΄as.integer()λ³ν μNAκ° λ°νλλ μ·¨μ½μ μ΄ μμμ΅λλ€.π― Impact: μ λ ₯κ° κ²μ¦ μ°ν λ° νμ λ‘μ§μμ μμΈ λ°μμΌλ‘ μΈν νλ‘μΈμ€ ν¬λμλ μλμΉ μμ λμ λ°μ κ°λ₯.
π§ Fix: μ κ·μμ
^[12]$λ‘ λ³κ²½νμ¬ μ νν 1 λλ 2μ μ λ ₯λ§ νμ©νλλ‘ μ λ ₯κ°μ μ격ν μ ννμ΅λλ€.β Verification: μ 체 ν μ€νΈ μ€μνΈλ₯Ό μ€ννμ¬ μ μ λμν¨μ νμΈνμ΅λλ€.
PR created automatically by Jules for task 611517964555622771 started by @seonghobae