Vulnerability CVE-2017-15023
Published: 2017-10-04   Modified: 2017-10-05

Description:
read_formatted_entries in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, does not properly validate the format count, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ELF file, related to concat_filename.

Type:

CWE-476

 (NULL Pointer Dereference)

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/101611
https://blogs.gentoo.org/ago/2017/10/03/binutils-null-pointer-dereference-in-concat_filename-dwarf2-c/
https://security.gentoo.org/glsa/201801-01
https://sourceware.org/bugzilla/show_bug.cgi?id=22200
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=c361faae8d964db951b7100cada4dcdc983df1bf
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