dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, miscalculates DW_FORM_ref_addr die refs in the case of a relocatable object file, which allows remote attackers to cause a denial of service (find_abstract_instance_name invalid memory read, segmentation fault, and application crash).
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://security.gentoo.org/glsa/201801-01 | vendor advisory |
| https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=1b86808a86077722ee4f42ff97f836b12420bb2a | |
| https://blogs.gentoo.org/ago/2017/10/24/binutils-invalid-memory-read-in-find_abstract_instance_name-dwarf2-c/ | vdb entry third party advisory patch |
| http://www.securityfocus.com/bid/101610 | vdb entry |
| https://sourceware.org/bugzilla/show_bug.cgi?id=22209 | issue tracking third party advisory patch |