| Titre | GNU Binutils 2.47 Memory Corruption |
|---|
| Description | A vulnerability was found in GNU Binutils 2.47. The ld linker has an assertion failure in _bfd_write_merged_section (bfd/merge.c:1121) when linking malformed ELF files with --shared -z now options. When the merge state of a merged section is inconsistent with its content, the BFD_ASSERT triggers. In non-assert builds (ASAN/release), this causes a NULL pointer dereference SEGV. Reproducer: ld --shared -z now -o /dev/null bug_11.o (with PoC file). Stack trace: #0 _bfd_write_merged_section bfd/merge.c:1121, #1 elf_link_input_bfd bfd/elflink.c:12213, #2 _bfd_elf_final_link bfd/elflink.c:13189, #3 ldwrite ld/ldwrite.c:548, #4 main ld/ldmain.c:1001. |
|---|
| La source | ⚠️ https://sourceware.org/bugzilla/show_bug.cgi?id=34452 |
|---|
| Utilisateur | wsstssw (UID 100468) |
|---|
| Soumission | 12/08/2026 03:15 (il y a 1 mois) |
|---|
| Modérer | 13/09/2026 21:21 (1 month later) |
|---|
| Statut | Accepté |
|---|
| Entrée VulDB | 403332 [GNU Binutils 2.47 Section Merge bfd/merge.c _bfd_write_merged_section déni de service] |
|---|
| Points | 20 |
|---|