CVE-2017-14729

MEDIUM

Description

The *_get_synthetic_symtab functions in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, do not ensure a unique PLT entry for a symbol, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted ELF file, related to elf32-i386.c and elf64-x86-64.c.

References

https://blogs.gentoo.org/ago/2017/09/25/binutils-heap-based-buffer-overflow-in-_bfd_x86_elf_get_synthetic_symtab-elfxx-x86-c/

https://sourceware.org/bugzilla/show_bug.cgi?id=22170

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=56933f9e3e90eebf1018ed7417d6c1184b91db6b

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=61e3bf5f83f7e505b6bc51ef65426e5b31e6e360

Details

Source: MITRE

Published: 2017-09-25

Updated: 2017-09-28

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH