CyberRota Analysis
AI-GeneratedThe GNU C Library versions 2.3 to 2.44 are vulnerable to a denial-of-service condition when processing crafted EUC_JISX0213 input, which can cause applications to hang indefinitely due to improper handling of conversion state. This issue arises when the output buffer is insufficient to accommodate all decoded code points, leading to an infinite loop in the conversion process. Organizations utilizing applications that rely on this specific character set should prioritize addressing this vulnerability to prevent potential service disruptions.
Original NVD Description
Converting crafted EUC_JISX0213 input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.3 to 2.44 may result in the converter making no progress, causing the calling application to hang. Some EUC_JISX0213 sequences decode to two code points. If the output buffer has room for only the first one, the converter stores the second in the conversion state and returns E2BIG, but it never clears that pending character after emitting it on the next call. The converter then keeps emitting the pending character without consuming further input, so an application that retries the conversion loops forever. The input must be attacker controlled and the application must convert it with an output buffer small enough to split the two code points. Only the EUC_JISX0213 character set is affected, which is not commonly used. The related defect in SHIFT_JISX0213 converter is tracked separately as CVE-2026-77117.