Vulnerability CVE-2017-14939
Published: 2017-09-29   Modified: 2017-09-30

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.

See advisories in our WLB2 database:
Topic
Author
Date
High
binutils 2.29.51.20170921 read_1_byte Heap-Based Buffer Overflow
Agostino Sarubbo
12.10.2017

Type:

CWE-125

 (Out-of-bounds Read)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
GNU -> Binutils 

 References:
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/
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