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Graph/b67242d5-f173-41d9-a14f-4410ae679ea9

RootCauseunvalidated

iconv/loop.c lines 251–259. Tension: MAX_NEEDED_OUTPUT is NOT checked at runtime.

b67242d5-f173-41d9-a14f-4410ae679ea9

iconv/loop.c lines 251–259. Tension: MAX_NEEDED_OUTPUT is NOT checked at runtime.

Node Details

Public graph metadata

Updated5/1/2026

PageRank0.0000

Effectiveness0.000

Connections

2 linked nodes

CAUSED_BYProblem

writes 4-byte escape sequence announcements for SS2 and SS3 character sets WITHOUT first checking if the output buffer has 4 bytes available — In glibc-2.38's iconv ISO-2022-CN-EXT encoder (iconvdata/iso-2022-cn-ext.c). Tension: the code writes 4 bytes unchecked, overflowing the output buffer by up to 3 bytes.

IDENTIFIESReport

CVE-2024-2961: glibc iconv ISO-2022-CN-EXT buffer overflow — missing bounds checks in SS2/SS3 escape sequence writes

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