CVE-2017-14939 Information

Description

decode_line_info in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd) as distributed in GNU Binutils 2.29 mishandles a length calculation which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted ELF file related to read_1_byte.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/101216 https://blogs.gentoo.org/ago/2017/09/26/binutils-heap-based-buffer-overflow-in-read_1_byte-dwarf2-c/ https://sourceware.org/bugzilla/show_bug.cgi?id=22169 https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=515f23e63c0074ab531bc954f84ca40c6281a724 https://www.exploit-db.com/exploits/42970/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5