binutils: abort in readelf via crafted ELF binary with malformed DWARF abbrev or debug information

A flaw was found in binutils. Processing a specially crafted ELF binary file containing malformed DWARF abbrev or debug information with the readelf program using the -w abbrev command line option can trigger an abort, causing a crash and resulting in a denial of service...

GNU Binutils thru 2.46 readelf contains a vulnerability that leads to an abort (SIGABRT) when processing a crafted ELF binary with malformed DWARF abbrev or debug information. Due to incomplete state cleanup in process_debug_info(), an invalid debug_info_p state may propagate into DWARF attribute parsing routines. When certain malformed attributes result in an unexpected data length of zero, byte_get_little_endian() triggers a fatal abort. No evidence of memory corruption or code execution was observed; the impact is limited to denial of service.

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AZL-79589 CVE-2025-69652 affecting package binutils 2.37-20

GNU Binutils thru 2.46 readelf contains a vulnerability that leads to an abort SIGABRT when processing a crafted ELF binary with malformed DWARF abbrev or debug information. Due to incomplete state cleanup in processdebuginfo, an invalid debuginfop state may propagate into DWARF attribute parsing...