جزئیات آسیب‌پذیری

GNU Binutils thru 2.46 readelf contains a double free vulnerability when processing a crafted ELF binary with malformed relocation data. During GOT relocation handling, dump_relocations may return early without initializing the all_relocations array. As a result, process_got_section_contents() may pass an uninitialized r_symbol pointer to free(), leading to a double free and terminating the program with SIGABRT. No evidence of exploitable memory corruption or code execution was observed; the impact is limited to denial of service. NOTE: this is disputed by third parties because the observed behavior occurred only in pre-release code and did not affect any tagged version.

• https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ea4bc025abdba85a90e26e13f551c16a44bfa921
• https://sourceware.org/bugzilla/show_bug.cgi?id=33700
• https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=81e90cf63a10ad11772c2437c8f2a88f1a00c739
• https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=ea4bc025abdba85a90e26e13f551c16a44bfa92
• https://sourceware.org/bugzilla/show_bug.cgi?id=33698