The dump_relocs_in_section function in objdump.c in GNU Binutils 2.29.1 does not check for reloc count integer overflows, which allows remote attackers to cause a denial of service (excessive memory allocation, or heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted PE file.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://sourceware.org/bugzilla/show_bug.cgi?id=22508 | issue tracking patch exploit third party advisory |
| https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Bh=d785b7d4b877ed465d04072e17ca19d0f47d840f | |
| https://security.gentoo.org/glsa/201811-17 | third party advisory vendor advisory |